Jura J8 User manual

J (EA/SA/INTA)
Instructions for Use
jura.com/support-J8
Additional online content
Tap, click or scan the QR code to access
additional online resources.
There are video tutorials to help you
operate your J8.

Table of contents

Table of contents
 Control elements....................................................................................................................................................................................
 For your safety ...................................................................................................................................................................................... 
Comply with the instructions for use............................................................................................................................................................................ 4
Proper use .......................................................................................................................................................................................................................... 4
User limitations................................................................................................................................................................................................................. 4
Use by children.................................................................................................................................................................................................................. 4
What to do in the event of damage.............................................................................................................................................................................. 4
Preventing damage.......................................................................................................................................................................................................... 5
Danger of electric shock .................................................................................................................................................................................................. 5
Danger of burns, scalding and injury............................................................................................................................................................................ 5
 Preparing and using for the first time ................................................................................................................................................. 
Setting up the machine...................................................................................................................................................................................................6
Filling the bean container................................................................................................................................................................................................ 6
Determining the water hardness ................................................................................................................................................................................... 6
First-time use..................................................................................................................................................................................................................... 6
Managing your J8 – the JURA Cockpit .........................................................................................................................................................................8
Coffee Eye........................................................................................................................................................................................................................... 8
Connecting milk................................................................................................................................................................................................................8
Establishing a WiFi connection ......................................................................................................................................................................................9
 Preparation ........................................................................................................................................................................................... 
Preparation with preselection (Speciality Selection).................................................................................................................................................. 9
Espresso and coffee.......................................................................................................................................................................................................... 9
Sweet latte (prepared with syrup attachment)...........................................................................................................................................................10
Latte macchiato, cappuccino and other speciality coffees with milk......................................................................................................................11
Milk and milk foam...........................................................................................................................................................................................................11
Americano and lungo .....................................................................................................................................................................................................11
Espresso doppio................................................................................................................................................................................................................11
Ground coffee....................................................................................................................................................................................................................11
Hot water...........................................................................................................................................................................................................................12
Adjusting the product settings......................................................................................................................................................................................12
 Daily operation .................................................................................................................................................................................... 
Switching the machine on and off................................................................................................................................................................................13
Filling the water tank.......................................................................................................................................................................................................13
Maintenance actions.......................................................................................................................................................................................................14
 Machine settings ................................................................................................................................................................................. 
 Maintenance ........................................................................................................................................................................................ 
Rinsing the machine........................................................................................................................................................................................................15
Rinsing the milk system .................................................................................................................................................................................................15
Cleaning the milk system...............................................................................................................................................................................................16
Dismantling and rinsing the professional fine foam frother ...................................................................................................................................16
Inserting/changing the filter .......................................................................................................................................................................................... 17
Cleaning the machine.....................................................................................................................................................................................................18
Descaling the machine ..................................................................................................................................................................................................19
Descaling the water tank...............................................................................................................................................................................................20
Cleaning the bean container.........................................................................................................................................................................................20
 Display messages................................................................................................................................................................................. 
 Troubleshooting .................................................................................................................................................................................. 
 Transport and environmentally friendly disposal .............................................................................................................................
Transport/ Emptying the system ................................................................................................................................................................................ 22
Disposal ............................................................................................................................................................................................................................ 22
 Technical data .....................................................................................................................................................................................
 Index .................................................................................................................................................................................................. 
 JURA contact details/ Legal information.......................................................................................................................................... 

 Control elements

 Control elements
qOn/Off button Q
wBean container with aroma preservation cover
eTouch display
rMilk system with professional fine foam frother (height-adjustable)
tHeight-adjustable coffee spout
zHot-water spout
uCup grille with aperture
iInsert for drip tray
oDrip tray
pCoffee grounds container
aMains cable (permanently connected or plug-in)
sWater tank
dWater tank cover
fService socket with JURA WiFi Connect (under cover)
gFiller funnel cover
hFiller funnel for ground coffee (removable)
jGrinder adjustment switch
kContainer for milk system cleaning
lMeasuring spoon for ground coffee
ySyrup attachment
1
171615
13
11
12
14
2
3
4
5
6
7
10
98
  

 For your safety

 For your safety
Comply with the instructions for use
Before using the machine, read these instructions for use thoroughly and completely and comply with
the instructions they contain. Keep these instructions for use close to the machine and pass them on to
the next user.
Failure to observe the instructions for use may result in serious injuries or damage to property. Safety
information is therefore indicated as follows:
JWARNING Indicates circumstances that may result in serious injuries or death.
JCAUTION Indicates circumstances that may result in minor injuries.
CAUTION Indicates circumstances that may result in damage to property.
Proper use
The machine is intended for private domestic use. It should only be used for coffee preparation and to
heat milk and water. Use for any other purpose will be deemed improper.
User limitations
People, including children, who
Udo not have the physical, sensory or mental capabilities to use the machine safely or
Uare inexperienced or lack knowledge
must be supervised by a responsible person when using it, or must be instructed in how to use it cor-
rectly.
When using the CLARIS Smart filter cartridge or a JURA WiFi Connect, wireless connections are estab-
lished. Specific details on the frequency band used and the maximum transmission power can be found
in the ‘11 Technical data’ section.
Use by children
Children must be able to recognise and understand the potential dangers arising from incorrect use:
UKeep children under the age of  away from the machine, or supervise them constantly.
UChildren aged  and over may only operate the machine without supervision if they have been
instructed in how to use it safely.
UChildren may not clean or service the machine unless supervised by a responsible person.
UDo not allow children to play with the machine.
What to do in the event of damage
Never use a damaged machine or mains cable. This could result in fatal electric shock.
UIn the event of signs of damage, disconnect the machine from the mains. To do this, first switch the
J8 off with the On/Off button Q. Only then should you remove the mains plug from the power
socket.
UReplace a damaged plug-in mains cable with an original JURA mains cable. Unsuitable mains cables
may result in consequential damage.
UOnly permit authorised JURA service centres to carry out repairs to the machine and the perma-
nently connected mains cable. Unsuitable repairs may result in consequential damage.

 For your safety

Preventing damage
To avoid damage to the machine and the mains cable:
UDo not use the J8 and the mains cable near hot surfaces.
UDo not allow the mains cable to rub against sharp edges and ensure that it does not become
trapped.
UNever allow the mains cable to loosely hang down. The mains cable could pose a tripping hazard or
become damaged.
UProtect the J8 from weather and direct sunlight.
UOnly connect the J8 to a mains voltage corresponding to that stated on the rating plate. The rating
plate is located on the underside.
UConnect the J8 directly to a domestic power socket. Using multi-socket adapters or extension cords
may cause overheating.
UDo not use alkaline or alcohol-based cleaning agents; only use mild cleaning agents and a soft cloth.
UDo not use any coffee beans treated with additives or caramelised coffee beans.
UOnly fill the water tank with fresh, cold, non-carbonated water.
USwitch the machine off with the On/Off button Qif you are going to be absent for a longer period of
time and remove the mains plug from the power socket.
UOnly use original JURA maintenance products. Use of products that are not explicitly recommended
by JURA could damage your J8.
Danger of electric shock
Water conducts electricity. Do not bring water and electricity into contact with one another:
UNever touch the mains plug with wet hands.
UDo not immerse the J8 and/or mains cable in water.
UDo not put the J8 or any individual parts in the dishwasher.
UBefore cleaning, switch the J8 off with the On/Off button Q. Always wipe the J8 with a damp cloth
rather than a wet one, and protect it from prolonged exposure to water splash. The J8 must not be
cleaned with a jet of water.
UThe J8 is not suitable for installation on a surface where a jet of water can be used.
Danger of burns, scalding and injury
UDo not touch the spouts during operation. Use the handles provided.
UOptionally, your J8 can be remotely operated using mobile devices. When preparing a product or
initiating a maintenance programme, make sure that other people are not put at risk – for example,
through contact with the spouts.
UBe careful to ensure that the fine foam frother is correctly installed and clean, otherwise the fine
foam frother (or parts of it) may come loose.

 Preparing and using for the first time

 Preparing and using for the first time
Setting up the machine
TChoose a spot for your J8 which protects the machine against overheating. Ensure that the ventilation slots are not covered.
TPlace the J8 on a horizontal surface that is not sensitive to water.
Filling the bean container
The bean container has an aroma preservation cover. This will ensure that your coffee beans retain their aroma for longer.
CAUTION
Coffee beans which have been treated with additives (e.g. sugar), ground coffee or freeze-dried coffee will damage the grinder.
T Only use roasted, untreated coffee beans to fill the bean container.
TRemove the aroma preservation cover.
TRemove any dirt or foreign objects from inside the bean container.
TFill the bean container with coffee beans and close the aroma preservation cover.
Determining the water hardness
When you use the machine for the first time, you must set the water hardness. If you know the hardness of your water, go straight to the
next section. If you do not know the water hardness, you can find this out first:
THold the Aquadur®test strip supplied under running water for one second. Shake off the water.
TWait for about 1minute.
TYou will then be able to read the degree of water hardness from the discolouration of the Aquadur® test strip and the description on
the packaging.
First-time use
J WARNING
If the machine is operated with a defective mains cable, there is a danger of potentially fatal electric shock.
T Never use a machine which is damaged or has a defective mains cable.
CAUTION
Milk, sparkling mineral water or other liquids can damage the water tank or the machine.
T Only fill the water tank with fresh, cold water.
Precondition:The bean container has been filled.
TFor machines with a plug-in mains cable: Connect the mains cable to the machine.
TInsert the mains plug into a power socket.
TPress the On/Off button Qto switch the J8 on.
‘Sprachauswahl’ / ‘Deutsch’
ETo display more languages, touch 9or 0until the desired language comes into focus (e.g. ‘English’).

 Preparing and using for the first time

TTouch ‘Save’.
‘Saved’ appears briefly on the display.
‘Water hardness’
EPlease refer to the section above for a description of how to determine the water hardness.
TTouch 9or 0to change the water hardness setting.
TTouch ‘Save’.
‘Saved’ appears briefly on the display.
‘Insert filter’
TPlace a receptacle under the coffee spout.
TRemove the water tank and rinse it with cold water.
TFit the filter cartridge extension supplied on top of the CLARIS Smart filter cartridge.
TInsert the filter cartridge with its extension into the water tank.
TTurn the filter cartridge clockwise until it audibly clicks into place.
TFill the water tank with fresh, cold water and reinsert the tank.
EThe machine automatically detects that you have just inserted the filter cartridge.
‘Saved’
‘Filter is being rinsed’, water flows directly into the drip tray.
‘System is filling’
‘Empty drip tray’
TEmpty the drip tray and put it back into the machine.
‘Accessory’
EYou have the option of connecting the J8 to the JURA Cool Control milk cooler (wireless connection). To do this, touch ‘Connect’ and
follow the instructions on the display.
TTouch ‘Next’.
‘Wi-Fi connection’

 Preparing and using for the first time

TIf necessary, scan the QR code with your mobile device to download the JURA app (J.O.E.®).
EIf you would like to connect the J8 to your home network, touch ‘Connect’ and follow the instructions on the display. You can also
establish the connection later on (in the machine settings under ‘Wi-Fi connection’.
TPlace a receptacle under the coffee spout.
TTouch ‘Next’.
‘Machine is rinsing’
The start screen is displayed. Your J8 is ready for use.
Managing your J – the JURA Cockpit
The JURA Cockpit allows you to manage your J8. Touch fon the start screen to open the JURA Cockpit.
Symbol Meaning
c‘Maintenance’ section (blue)
f‘Machine setting’ section (green)
#The ‘Coffee Eye’ function (for cup detection) is enabled.
4(white) Your J8 is connected with the network and/or Cool Control via JURA WiFi Connect.
4(red) No connection to the WiFi network
$Filter mode
Coffee Eye
The J8 has an automatic cup detection feature. The ‘Coffee Eye’ detects when you place a cup under the coffee spout. The adapted start
screen will now show the black coffee and hot water specialities that you can prepare.
Connecting milk
Your J8 creates fine, creamy, feather-light milk foam with a perfect consistency. The most important requirement for frothing milk is a milk
temperature of 4–8°C. We would therefore recommend using a milk cooler or a milk container.
TRemove the protective cover from the fine foam frother.
TConnect the milk pipe to the fine foam frother.
TConnect the other end of the milk pipe to a milk container or a milk cooler.
EYour J8 is equipped with the HP milk system.
jura.com/app
c
4 $ #

 Preparation

Establishing a WiFi connection
Your J8 can be connected with your JURA app (J.O.E.®).
Precondition:J.O.E.®is installed on your mobile device. The JURA WiFi Connect is inserted into the service socket of your J8.
TTouch f.
TTouch the ‘Machine setting’ fsymbol.
TTouch ‘Wi-Fi connection’.
TTouch ‘Connect’.
TAdd a new network in your JURA app (J.O.E.®) and follow the instructions.
 Preparation
Basic information about preparing drinks:
Aim What to do
Display more products Touch öääto display additional pages of the start screen; touch the product
selector symbol at bottom right to access the product selector view
Change the coffee strength of a single product While the grinder is operating, swipe across the display with your finger
Change the amount for a single product During preparation, swipe across the display with your finger
Permanently change the coffee strength, quantity
and temperature for any given product
Tap and hold a product for around 2 seconds and configure the settings under
‘Product settings’
Changing the consistency of grind Turn the grinder adjustment switch to the desired position
Stop preparation Touch ‘Cancel’
Place a product on the start screen as a favourite Tap and hold a product for around 2 seconds and place another product under
‘Replace product’
EIf the screensaver is active, touch the display to return to the start screen.
ECoffee tastes best served hot. A cold porcelain cup cools the beverage – and impairs the taste. We therefore recommend prewarming
the cups. You can purchase a JURA cup warmer from your specialised dealer.
Preparation with preselection (Speciality Selection)
Touch ‘ZZZZ’to call up the Speciality Selection and activate the desired preselection for your next product:
Speciality Selection Meaning
‘S’– ‘Sweet milk foam’
(all speciality coffees with milk)
Use the syrup attachment provided to prepare the product with sweet milk foam.
s– ‘Extra Shot’
(sweet latte, cappuccino, café au lait,
latte macchiato, flat white)
The product is prepared with two brewing operations, with half the amount of water – for
a speciality coffee with a particularly intense taste.
e– Double product
(espresso, coffee)
The product is prepared twice in succession (2 strokes).
£– Ground coffee
(all speciality coffees except for espresso
doppio)
The product is prepared with ground coffee.
EThe Speciality Selection closes after 10 seconds.
EIf you press your preselection briefly, the next product will be prepared according to your preselection.
EIf you press and hold your preselection (for 2 seconds), the preselection will be active until you switch off your J8.
Espresso and coffee
Example:Coffee
TPlace a cup under the coffee spout.

 Preparation

TTouch ‘Coffee’.
The preset amount of water for coffee flows into the cup.
Sweet latte (prepared with syrup attachment)
The sweet latte is a speciality coffee with sweet milk foam. To make this speciality, use the syrup attachment provided.
EAll speciality coffees with milk can also be prepared with sweet milk foam. To do this, use the syrup attachment provided and before
starting preparation, select the Speciality Selection ‘S’.
Precondition:Milk is connected to the fine foam frother.
TRemove the cover from the syrup attachment.
TFill the syrup attachment with syrup. Fill it to the first, second or third mark depending on the desired sweetness.
TClose the syrup attachment.
TTouch ‘Sweet Latte’.
‘Please connect the syrup attachment, ensuring it is filled with syrup’
TRemove the lower part of the fine foam frother.
TConnect the syrup attachment to the fine foam frother.
TTurn the setting wheel of the fine foam frother to the ‘Milk Foam’ position.
TPlace a cup under the fine foam frother.
TTouch ‘Next’.
The preset amounts of coffee and milk foam flow into the cup.
‘Please remove the syrup attachment’
TRemove the syrup attachment and rinse it thoroughly under running water.
TTouch ‘Next’.
E minutes after preparation, the milk system is automatically rinsed. Therefore always place a receptacle under the fine foam frother
after preparing milk.
To ensure that the fine foam frother always works properly, you must clean it daily when you have been preparing milk (see chapter 7 ‘Main-
tenance – Cleaning the milk system’).
Tap, click or scan to watch
the video tutorial on YouTube

 Preparation

Latte macchiato, cappuccino and other speciality coffees with milk
Your J8 prepares the following speciality coffees with milk at the touch of a button:
ULatte macchiato
UFlat white
UCappuccino
UCortado
UMacchiato
UCafé au lait
Example:Latte macchiato
Precondition:Milk is connected to the fine foam frother.
TPlace a glass under the fine foam frother.
TTurn the setting wheel of the fine foam frother to the ‘Milk Foam’ position.
TTouch ‘Latte macchiato’ (page äöä).
The preset amount of milk foam flows into the glass.
EThere is a short interval while the hot milk separates from the milk foam. This allows the typical layers of a latte macchiato to form.
The preset amount of water for espresso flows into the glass.
E minutes after preparation, the milk system is automatically rinsed. Therefore always place a receptacle under the fine foam frother
after preparing milk.
To ensure that the fine foam frother always works properly, you must clean it daily when you have been preparing milk (see chapter 7 ‘Main-
tenance – Cleaning the milk system’).
Milk and milk foam
Your J8 prepares hot milk and milk foam. To do this, turn the setting wheel of the fine foam frother to the ‘Milk Foam’ or ‘Milk’ position.
E minutes after preparation, the milk system is automatically rinsed. Therefore always place a receptacle under the fine foam frother
after preparing milk.
Americano and lungo
For the americano and lungo, the J8 blends the coffee with hot water using a special preparation method. This results in a full-bodied spe-
ciality coffee which is particularly easy to digest. You can change the amount of this additional water (see chapter 4 ‘Preparation – Adjust-
ing the product settings’).
Espresso doppio
‘Doppio’ is Italian for ‘double’. When you select Espresso doppio, two espressi are prepared one after the other. The result is an extra full-bod-
ied and aromatic speciality coffee.
Ground coffee
You can choose to use a second coffee variety, for example decaffeinated coffee, with the filter funnel for ground coffee.
UNever add more than two level measuring spoons of ground coffee.
UUse ground coffee which is not ground too finely. Very fine coffee can block up the system so that the coffee only comes out in drips.
UIf you did not fill the machine with a sufficient amount of ground coffee, ‘Not enough ground coffee’ is displayed and the J8 stops the
operation.
UThe desired speciality coffee must be prepared within approximately one minute after filling with the ground coffee. Otherwise the J8
stops the operation and is once more ready for use.

 Preparation

Example:Proceed as follows to prepare an espresso using ground coffee.
TPlace an espresso cup under the coffee spout.
TTouch ‘ZZZZ’to call up the Speciality Selection.
TTouch £.
TTouch ‘Espresso’.
‘Please add ground coffee’
TOpen the cover of the filler funnel for ground coffee.
TAdd the desired amount of ground coffee to the filler funnel (max. 2 level measuring spoons).
EThe amount of ground coffee determines the intensity and aroma of the beverage, so you can adjust it to your personal preferences.
TClose the cover of the filler funnel.
TTouch ‘Next’.
The preset amount of water for espresso flows into the cup.
Hot water
The J8 allows you to prepare different variants of hot water:
U‘Hot water’
U‘Hot water for green tea’ (in the product selector view)
J CAUTION
There is a danger of scalding from hot water splashes.
T Avoid direct contact with the skin.
Example:Hot water
TPlace a cup under the hot-water spout.
TTouch ‘Hot water’.
The preset amount of water flows into the cup.
Adjusting the product settings
Touch a product for approximately  seconds to access the settings:
U‘Product settings’: Specify individual settings such as coffee strength, amount of water, etc.
U‘Product name’: Change the name of the product.
U‘Permanent preselection’: Specify a permanent preselection (Speciality Selection).
U‘Replace product’: Replace the products on the start screen with your favourites.
Tap, click or scan to watch
the video tutorial on YouTube

 Daily operation

EIf there is a cup under the coffee spout (‘Coffee Eye’ enabled), not all settings will be possible.
Example:Proceed as follows to change the coffee strength for one coffee.
TTouch ‘Coffee’ for approximately  seconds.
TTouch ‘Product settings’.
EDepending on the selected product, there will be different settings available which are represented by symbols on your display.
TTouch the _symbol.
The _symbol appears in white.
TSwipe across the coffee beans with your finger to change the coffee strength setting.
TTouch ‘Save’.
TTouch ‘Back’ to return to the start screen.
 Daily operation
Switching the machine on and off
TPlace one receptacle under the coffee spout and another under the fine foam frother.
TPress the On/Off button Q.
‘Machine is rinsing’
Your J8 is switched on or off.
EWhen the machine is switched off, the system is only rinsed if a speciality coffee has been prepared.
EIf milk has been prepared before switching off, you will be prompted to carry out milk system cleaning (‘Clean the milk system’).
After 30 seconds the switch-off process continues automatically.
Filling the water tank
Daily maintenance of the machine and hygiene when handling milk, coffee and water are key to a perfect coffee result in the cup every
time. You should therefore change the water daily.
CAUTION
Milk, sparkling mineral water or other liquids can damage the water tank or the machine.
T Only fill the water tank with fresh, cold water.
TRemove the water tank and rinse it with cold water.
TFill the water tank with fresh, cold water and reinsert the tank.
Tap, click or scan to watch
the video tutorial on YouTube

 Machine settings

Maintenance actions
Optimal coffee quality depends on many factors. One important prerequisite is regular maintenance of your J8. Carry out the following
steps:
Maintenance action Daily If necessary Note
Empty the drip tray and coffee grounds
container and rinse with warm water
(The insert for the drip tray, including the drip
tray itself, and the coffee grounds container are
dishwasher-safe)
ZAlways empty the coffee grounds container
when the machine is switched on. This is the
only way of resetting the coffee grounds
counter.
Clean the milk system (if heavily soiled, also
dismantle it)
ZSee chapter 7 ‘Maintenance – Dismantling and
rinsing the professional fine foam frother’
Rinse the milk pipe Z
Rinse the water tank Z
Wipe the surface of the machine with a clean,
soft, damp cloth (e.g. microfibre cloth)
Z
Changing milk pipe with connector HP3 approx. every 3 months
Change the interchangeable milk spout CX3 approx. every 3 months
Clean the inside of the water tank with a brush Z
Clean the top and bottom of the cup grille Z
Thoroughly clean the drip tray and coffee
grounds container
ZIn the ‘Maintenance’ area cof the Cockpit, the
message ‘Maintenance information’ appears.
EYou will find more information about maintenance of your J8 in the ‘Maintenance’ csection in the programme item ‘Maintenance
information’.
 Machine settings
Touch fto open the Cockpit. In the ‘Machine setting’ fsection, you can make the following settings:
Programme item Explanation
Page ‘1/3’
‘Coffee Eye’ Enable/disable automatic cup detection with the ‘Coffee Eye’
‘Product name’ Display product images with/without product names on the start screen
‘Number of start screens’ Define number of start screens (1–4)
‘Number of products’ Set the number of products on the start screen: 2 products / 5 products
‘Wi-Fi connection’ J8 connect wirelessly with the JURA app (J.O.E.®) or disconnect again (see chapter 3 ‘Preparing and using
for the first time – Establishing a WiFi connection’)
‘Switch off after’ Set the automatic switch-off time to save energy (switch-off after 15minutes, 30minutes or 1 – 9 hours
after the last action on the machine)
‘Choose language’ Set language
‘Factory setting’ Reset your J8 to factory settings (the machine then switches off)
Page ‘2/3’
‘Water hardness’ Set the hardness of the water used (1°dH to 30°dH) to prevent limescale building up in your machine
‘Units’ Set the unit for the amount of water (ml or oz)
‘Accessory’ Establish a wireless connection between your J8 and the Cool Control milk cooler or disconnect it again
‘Display’ Change display brightness (in 10% increments)
‘Product counter’ View product counter
Tap, click or scan to watch
the video tutorial on YouTube

 Maintenance

Programme item Explanation
‘Maintenance counter’ View the maintenance counter
‘Operating instructions ’ Show instructions for using the syrup attachment and fine foam frother and switching between milk and
milk foam
‘Aroma control’ Show recommended settings for consistency of grind (enabled/disabled)
Page ‘3/3’
‘Rinse the milk system’ Set whether milk system rinsing takes place automatically or needs to be started manually
‘Empty system’ Empty the system to protect the J8 from frost during transport
‘Information’ View software version
 Maintenance
Basic information about maintenance:
UTouch fto open the Cockpit. This area consists of a ‘Maintenance status’ csection and a ‘Machine setting’ fsection. You can
manage the maintenance of your J8 in the csection.
UThe Cockpit shows maintenance programmes that need to be carried out in the form of messages with red backgrounds. Touch a
message to go straight to the corresponding maintenance programme. Maintenance programmes that are due imminently are
indicated on your J8 by means of a bar display within the message.
UCarry out each maintenance programme when you are prompted to do so.
Rinsing the machine
You can start coffee system rinsing manually at any time.
Precondition:The start screen is displayed.
TPlace one receptacle under the coffee spout and another under the fine foam frother.
TTouch f.
TTouch the ‘Maintenance’ symbol c.
TTouch ‘Rinse the coffee system’ to start the rinse operation.
‘Machine is rinsing’
The rinse stops automatically. The start screen is displayed.
Rinsing the milk system
After each milk preparation, the J8 prompts you to perform a milk system rinse.
In the machine settings you can define whether milk system rinsing takes place automatically or needs to be started manually
(see chapter 6 ‘Machine settings’).
Precondition:The start screen is displayed.
TPlace a receptacle under the fine foam frother.
TTouch f.
TTouch the ‘Maintenance’ symbol c.
TPress the ‘Rinse the milk system’ button to start the rinse operation.
‘Milk system is being rinsed’
The rinse stops automatically. The start screen is displayed.

 Maintenance

Cleaning the milk system
To ensure that the milk system always works properly, you must clean it daily when you have been preparing milk.
CAUTION
If the wrong cleaning agent is used, the machine could be damaged and/or traces could be left behind in the water.
T Use only original JURA maintenance products.
EJURA milk system cleaner is available from specialised dealers.
EUse the container supplied for milk system cleaning.
Precondition:The start screen is displayed. ‘Clean the milk system’ is displayed in the Cockpit.
TTouch ‘Clean the milk system’.
TTouch ‘Next’.
‘Cleaning agent for milk system’ / ‘Connect the milk tube’
TRemove the milk pipe from the milk container or milk cooler.
TPour one dosing unit of milk system cleaner into the container for milk system cleaning.
TPlace the container under the coffee spout and the fine foam frother.
TConnect the milk pipe to the container.
ETo connect the milk pipe to the container correctly, the pipe must be fitted with a connector.
TTouch ‘Start’.
The fine foam frother and the milk pipe are cleaned.
The operation stops automatically.
Dismantling and rinsing the professional fine foam frother
If insufficient foam is produced when the milk is frothed or milk sprays out of the professional fine foam frother, the frother may be dirty.
If this happens, dismantle and rinse the professional fine foam frother.
TRemove the milk pipe and rinse it thoroughly under running water.
TRemove the professional fine foam frother.
Tap, click or scan to watch
the video tutorial on YouTube
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 Maintenance

TDismantle the fine foam frother into its individual parts.
TRinse all the parts under running water. If there are severely dried-on milk residues, firstly immerse the individual parts in a solution of
250ml water and one dosing unit of JURA milk system cleaner. Then rinse the individual parts thoroughly.
TRe-assemble the professional fine foam frother.
EEnsure that all individual parts are correctly and firmly connected to ensure optimum operation of the professional fine foam frother.
TRe-fit the professional fine foam frother on the milk system.
Inserting/changing the filter
Once the filter cartridge stops working (depending on the water hardness setting), the J8 will prompt you to change the filter.
EYour J8 no longer has to be descaled if you are using the CLARIS Smart filter cartridge.
ECLARIS Smart filter cartridges are available from specialised dealers.
Precondition:The start screen is displayed. (Alternatively, ‘Change the filter’ is displayed in the Cockpit if the filter’s capacity has been
exhausted.)
TRemove and empty the water tank.
TTurn the filter cartridge anticlockwise and remove it along with the extension from the water tank.
TRemove the old CLARIS filter cartridge Smart.
TFit the filter cartridge extension on top of a new CLARIS Smart filter cartridge.
Tap, click or scan to watch
the video tutorial on YouTube

 Maintenance

TInsert the filter cartridge with its extension into the water tank.
TTurn the filter cartridge clockwise until it audibly clicks into place.
TFill the water tank with fresh, cold water and reinsert the tank.
The machine automatically detects that you have just inserted/changed the filter cartridge.
‘Filter is being rinsed’, water flows directly into the drip tray.
‘Empty drip tray’
TEmpty the drip tray and coffee grounds container and put them back into the machine.
The start screen is displayed.
Cleaning the machine
After 180preparations or 80switch-on rinses, the J8 will prompt you to clean it.
CAUTION
If the wrong cleaning agent is used, the machine could be damaged and/or traces could be left behind in the water.
T Use only original JURA maintenance products.
EThe cleaning programme lasts approximately 20 minutes.
EDo not interrupt the cleaning programme. The quality of cleaning will be impaired if you do so.
EJURA cleaning tablets are available from specialised dealers.
Precondition:‘Clean’ is displayed in the Cockpit.
TFill the water tank.
TTouch ‘Clean’.
TTouch ‘Start’.
‘Empty drip tray’ / ‘Empty coffee grounds container’
TEmpty the drip tray and coffee grounds container and put them back into the machine.
TPlace one receptacle under the coffee spout and another under the fine foam frother.
TTouch ‘Next’.
‘Machine is being cleaned’
The operation is interrupted, ‘Add cleaning tablet’.
TOpen the cover of the filler funnel for ground coffee.
Tap, click or scan to watch
the video tutorial on YouTube

 Maintenance

TInsert a JURA cleaning tablet into the filler funnel.
TClose the cover of the filler funnel.
TTouch ‘Next’.
‘Machine is being cleaned’
‘Empty drip tray’ / ‘Empty coffee grounds container’
TEmpty the drip tray and coffee grounds container and put them back into the machine.
Descaling the machine
The J8 builds up deposits of limescale over time and automatically prompts you to descale it when necessary (unless you are using a
CLARIS Smart filter cartridge).
J CAUTION
If the descaling agent comes into contact with the skin or eyes, this can cause irritation.
T Avoid contact with the skin or eyes.
T Rinse off the descaling agent with clean water. Should you get any descaling agent in your eye, see a doctor.
CAUTION
If the wrong descaling agent is used, the machine could be damaged and/or traces could be left behind in the water.
T Use only original JURA maintenance products.
CAUTION
If the descaling operation is interrupted, there may be damage to the machine.
T Allow the descaling programme to run to the end.
CAUTION
If the descaling agent comes into contact with sensitive surfaces (e.g. marble), damage cannot be ruled out.
T Clean up any splashes immediately.
EThe descaling programme lasts approximately 45minutes.
EJURA descaling tablets are available from specialised dealers.
Precondition:‘Descale’ is displayed in the Cockpit.
TTouch ‘Descale’.
TTouch ‘Start’.
‘Empty coffee grounds container’ / ‘Empty drip tray’
TEmpty the drip tray and coffee grounds container and put them back into the machine.
‘Pour descaling agent into water tank’
TRemove and empty the water tank.
Tap, click or scan to watch
the video tutorial on YouTube

 Maintenance

TCompletely dissolve 3JURA descaling tablets in a receptacle holding 500ml of water. This may take several minutes.
TPour the solution into the empty water tank and insert it into the machine.
TPlace one receptacle under the coffee spout and another under the fine foam frother.
TTouch ‘Next’.
‘Machine is being descaled’, water flows repeatedly out of the hot-water spout and fine foam frother straight into the drip tray.
‘Empty coffee grounds container’ / ‘Empty drip tray’
TEmpty the drip tray and coffee grounds container and put them back into the machine.
‘Rinse the water tank’ / ‘Fill water tank’
TEmpty the receptacles and place them back under the coffee spout and the fine foam frother.
TRemove the water tank and rinse it thoroughly.
TFill the water tank with fresh, cold water and reinsert the tank.
TTouch ‘Next’.
Water flows repeatedly out of the hot-water spout and fine foam frother straight into the drip tray.
‘Empty coffee grounds container’ / ‘Empty drip tray’
TEmpty the drip tray and coffee grounds container and put them back into the machine.
EIf the descaling operation stops unexpectedly, rinse the water tank thoroughly.
Descaling the water tank
Limescale deposits may form in the water tank. To ensure correct function of the machine, descale the water tank from time to time.
TRemove the water tank.
TIf you use a CLARIS Smart filter cartridge, remove this.
TCompletely fill the water tank and dissolve 3 JURA descaling tablets in it.
TLeave the water tank with the descaling solution for several hours (e.g. overnight).
TEmpty the water tank and rinse it thoroughly.
TIf you use a CLARIS Smart filter cartridge, insert this again.
TFill the water tank with fresh, cold water and reinsert the tank.
Cleaning the bean container
Coffee beans may be covered with a slight oil film which remains on the walls of the bean container. These traces may negatively affect the
coffee result. For this reason clean the bean container from time to time.
Precondition:‘Fill bean container’ is displayed.
TSwitch the machine off with the On/Off button Q.
TRemove the aroma preservation cover.
TClean the bean container with a soft, dry cloth.
TFill the bean container with coffee beans and close the aroma preservation cover.
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