Grainfather G Series User manual

GSERIES
G702QUICK START GUIDE
CHEERS, NICE
TO MEET YOU

LET’S
BREW BIG
TOGETHER
GSERIES
02

Get your equipment ready by following these quick and easy steps and you’ll be brewing in no time.
NOTE: These are shortened instructions for product assembly only. The full online instructions provide
more detail about the brewing process using your G702: grainfather.com/instructions/
WARNING NORTH AMERICA 220V ONLY
THANK YOU FOR CHOOSING
THE GRAINFATHER G702
Please check your unit rating label for the voltage. If your unit is a North American 220V product, the power cord,
controller and boiler body included in the box are designed to be used together with a 220V supply. Using any
of these components with another product may result in hazards and equipment damage.
3-pin workshop and
power tools supply.
3-pin workshop and
power tools supply.
3-pin laundry dryer
supply, most common
installation prior to
1996.
4-pin modern laundry
dryer supply, commonly
installed aer 1996.
4-pin electric oven
supply.
Brewing system is compatible using power
cord supplied in-box.
Brewing system is compatible by using an
adapter that includes a ground connection
and has appropriate electrical certication.
This power supply socket is NOT SUITABLE
for use with the brewing system. This socket
provides hot-hot-neutral connections. The
brewing system requires a ground connection to
perform safely in the event of an electrical fault.
Brewing system is compatible by using an
adapter that includes a ground connection
and has appropriate electrical certication.
Brewing system is compatible by using an
adapter that includes a ground connection
and has appropriate electrical certication.
SOCKET GUIDE (NORTH AMERICA 220V ONLY)
POWER SUPPLY SOCKET
NEMA 6−20R
NEMA L6−20R
NEMA 10−30R
NEMA 14−30R
NEMA 14−50R
NOT SUITABLE
NEMA L14−30R
NEMA 14−60R
COMPATIBILITYDESCRIPTION
03

SAFETY INFORMATION
1. Read all instructions before using the Grainfather G70
2
.
2.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or a qualied person to avoid a hazard.
3. This appliance is intended to be used in household and similar applications such as sta kitchen areas in shops, oces, and
other working environments; farmhouses and by clients in hotels, motels and other residential type environments; bed and
breakfast type environments; catering and similar non-retailed applications.
4. The appliance is for indoor use only.
5. The appliance is not suitable for installation in an area where a water jet could be used.
6. The appliance must not be cleaned by a water jet.
7. The appliance must be in an upright position at all times when in use.
8. The appliance is only to be installed in locations where it can be overseen by trained personnel.
9. The installation of a residual current device (RCD) having a rated residual operating current not exceeding 30 mA is advisable.
10. The A-weighted sound pressure level of the appliance is below 70 db.
11. Always unplug the unit before cleaning, during storage or in the event of a fault.
12. The boiler, lid and pipes may reach temperatures of up to 100°C (212°F) and therefore must be handled with caution.
Never move the unit while it is in operation.
13. Handles on the side of the unit are only meant for transportation once the unit is empty and in a cooled, non-use state.
14. Please note that a two-person or mechanical li is required when using this system. A single person li may lead to
serious injury.
15. Access of the service area is restricted to persons having knowledge and practical experience of the appliance. The maximum
and minimum ambient temperatures for normal use of the appliance is: -20°C (-4°F) to 40°C (104°F).
16. To protect against re, electric shock, and injury, do not immerse cord/plugs in water or other liquid.
THE FOLLOWING STATEMENT APPLIES TO GRAINFATHER PRODUCTS SOLD IN EUROPE:
•This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved.
•Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
THE FOLLOWING STATEMENT APPLIES TO GRAINFATHER PRODUCTS SOLD IN THE UNITED KINGDOM:
•This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without supervision.
•Means for disconnection must be incorporated in the xed wiring in accordance with the wiring rules.
•The xed wiring insulation must be protected, for example, by insulating sleeving having an appropriate temperature rating.
THE FOLLOWING STATEMENT APPLIES TO GRAINFATHER PRODUCTS SOLD IN AUSTRALIA AND NEW ZEALAND:
•This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities,
or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance
by a person responsible for their safety.
•Children should be supervised to ensure that they do not play with the appliance.
NOTE: Further to the safeguards listed above, we do not recommend the use of this product by children. Not following the
safety information above could result in serious injuries and may void your warranty.
04

05
ANATOMY
DIAGRAM
& PARTS LIST
3. Support ring retainer
2. Support ring
4. Hop lter
6. Body
8. Pump
9. Power box
10. Base
7. M16 socket
1. Glass lid
5. Controller, cable
and M16 DC
connector
12. Liing bar
15. Grain basket
17. Ball valve tap
16. Counterow
wort chiller
13. Recirculation
barb and hose
11. Recirculation
pipe, sight
glass, ball
valve and
ings
14. Grain plate
18. Tap adapter set
NOTE: The full spare parts list for the G70
2
is available online: help.grainfather.com

PRE-BREWING
ASSEMBLY
Before use, we recommend cleaning
your G70
2
and all of its components
using the Grainfather High
Performance Cleaner. For further
information on cleaning, please
refer to the full instructions online:
grainfather.com/instructions
06
1. INSTALLING THE FILTER
Take the hop lter (4) and place it into the base inside
the G70
2
body (6). It should be a tight t and you’ll need
to apply some pressure to make sure that it is securely
in place.
3. CONNECTING TO POWER
Take the main power cable and plug it into the base at the
back of the G702. Next, plug the other end of the cable into the
professionally installed 15A (13A in UK) power socket. Turn on
the master switch at the base of the G702body. The controller
should now receive power and the display will turn on. If this
does not occur, please check that both the M16 controller
cable and the main power cable are securely connected.
4. ADVANCED Wi-Fi CONNECTION AND
APP CONTROL
At this point you will be able to use your new G702and
complete a brew using the G702controller. The G702is
designed with smart features, Wi-Fi connectivity, and is
compatible with the free Grainfather App where you can nd
recipes and run your brew session remotely from your mobile
device. For more information, please read the full instructions
online: grainfather.com/instructions
4
5
7
cap from the M16 socket (7) on the front of the G70
2
. Plug
the M16 cable (5) into the socket, making sure that the
right-angle connector is facing upwards. Finally, tighten
the securing nut.
2. ATTACHING THE CONTROLLER
Remove the G70
2
controller (5) and the power cord from
its packaging and place the controller securely on the
bracket on the front of the unit. Next, remove the small

07
15
This section outlines the key
steps during the brewing process.
For further information, please
refer to the full instructions online:
grainfather.com/instructions
1. ADD THE MASH WATER
Make sure that your G702is on a at, stable surface
before you start brewing. We recommend placing your
G702on the oor due to heavy liing that is required later
in the brewing process. Add the volume of mash water
required by your recipe – you can use the advanced
calculators available on the Grainfather App.
NOTE: Ensure that the recirculation ball valve (11) is open
during this step to avoid a pump airlock.
2. SET THE MASH/STRIKE TEMPERATURE
Using the G702controller (5), set the required mash
temperature and press the ‘heat’ buon to initiate heating.
Place the glass lid (1) on the G702to reduce the heating
time. At this stage, if your G702is connected to the
Grainfather App, you can run your brew session remotely
from your mobile device.
3. ASSEMBLE THE GRAIN BASKET
Insert the G702grain plate (14) into the grain basket (15)
and make sure that it is siing at at the boom of
the basket.
BREWING ON
THE
G702
1514
4. INSTALL THE GRAIN BASKET
Slowly insert the assembled grain basket into the G702.
Ensure that the top of the grain basket rests at on the
support ring (2).
5. ADD GRAINS AND STIR
Once your water reaches the set temperature, slowly
add the grain to the grain basket, stirring well to avoid
any dry clumps.
NOTE: Unlike previous versions, the G70
2
does not require
a top plate or an overow pipe in the basket. The change
in design of the grain basket with extra drainage holes
has removed the need for these parts. You can use a top
plate when brewing higher ABV beers where you will be
maximising the amount of grain used in the G70
2
. In this
case, the top plate can help to keep grain in the basket
if the wort levels are too high and stops any wort from
draining through the liing bar holes on the side of the
basket. An additional G70
2
grain plate can be purchased
on the online Grainfather Store if you choose to use one.

08
6. INSTALL THE RECIRCULATION HOSE
Ensure that the hose is securely aached to the
recirculation barb (13) and insert the barb into the
G702body. Rest the other end of the hose on the
top of the grain.
7. RECIRCULATE YOUR MASH (WORT)
First, open the ball valve (11) on the top of the
recirculation pipe (11) on the side of the unit. Then,
to begin recirculating, press the ‘pump’ buon on
the controller or via the Grainfather App.
NOTE: To save time, we recommend preparing
your sparge water during your mash.
9. SPARGING AND BASKET REMOVAL
Allow the mash liquid to drain into the boiler. Then,
gently pour the sparge water evenly over the grain until
the water is a few millimetres above the grain and allow
to drain. Once the sparge has nished, ret the liing bar
to li and remove the entire grain basket from the boiler.
NOTE: We also recommend gently scooping some
of the grain from the basket to reduce the weight.
TIP: To save time, you can now start to increase the
temperature in preparation for the boil.
CAUTION
A TWO PERSON or mechanical li
is required when using this system
as the basket can weigh up to 60kg
(132 lb) during use. Please do not aempt to li
by yourself as this could lead to serious injury.
8. LIFTING THE GRAIN BASKET
When the mash has nished, turn o the pump and remove
the recirculation hose. Close the ball valve on the recirculation
pipe and insert the liing bar (12) into the two opposite holes
in the grain basket. Li the grain basket and then turn it 45°
so that the feet at the boom rest on the basket support
ring (2).
13 12

09
CAUTION
Ensure that the unit does not reach boil while
the grain basket is still in place. During the
boil, do not t the glass lid as it may cause
a boil over.
CAUTION
BE VERY CAREFUL not to twist the basket while
it’s in the sparge position as it could knock it
o the support ring. If the sparge is stuck and
not draining, then remove the top grain plate
(if applicable), lower the basket and slice the
grain bed with a stainless steel paddle or similar.
Cut through the stuck grain from the centre
towards the outside repeatedly until it loosens.
Then, return the basket to the sparge position
and replace the top grain plate (if applicable) to
continue sparging.
Always ensure that the support ring ts tightly
into its groove and is held in place by the support
ring retainer (3). If you remove the support ring
for cleaning, ensure that it is correctly reinstalled
along with the support ring retainer.
10. BOIL YOUR WORT
Aer removing the grain basket, complete the boil and
add the hop additions required by your recipe.

10
11. COOLING WITH THE COUNTERFLOW
WORT CHILLER
At the end of the boil, turn o the heat and circulate hot
wort through the counterow wort chiller for 2 minutes
to sanitise it. Then, turn on your cooling water and
transfer your wort through the counterow wort chiller
into your cleaned and sanitised fermenter. For detailed
instructions on how to use this equipment, please read
the full instructions online: grainfather.com/instructions
ADVICE FOR CLEANING AND STORAGE
• Always disconnect the G702before cleaning.
• Aer use, the G702and all of its components
should be cleaned immediately with clean
water and dried thoroughly to avoid corrosion.
• We recommend using the Grainfather High
Performance Cleaner as it removes the need
for tedious scrubbing.
• All stainless steel components can be cleaned
using a conventional, unscented detergent.
Abrasive agents and sponges/brushes could
cause scratching and are not suitable for use.
Ideally, use a dish brush to clean the base of
the unit.
• Do not store in a damp area as this could
cause damage to the product.
• Once you have cleaned your equipment, dry,
reassemble and store.
• For further cleaning advice,
please refer to the instructions online:
grainfather.com/instructions
COOLING
& CLEANING
The G702includes a counterow
wort chiller (16). This has been
designed to eciently cool your
wort, and allow easy and sanitary
transfer directly into a fermenter.
NOTE: Be careful not to sit the chiller on top of any
hoses as this could cause a build-up of liquid that may
cause the hose to burst.
Hot water out Cold water in
Hot wort in
Cold wort out
16

11
BREWING
NOTES

GET IN TOUCH ONLINE: help.grainfather.com/hc/en-us/requests/new
RESOURCES: Check out our YouTube Channel for helpful videos. For
more information, visit our Help Centre: help.grainfather.com
D1
READ AND FOLLOW ALL INSTRUCTIONS
CAUTION 
Risk of res and electric shock.
 Replace only with genuine Grainfather cord set, part No. SJTO.
 Do not immerse in water.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE
FOR COMMERCIAL AND INDOOR USE ONLY
WARNING
AVERTISSEMENT
RISK OF ELECTRIC SHOCK . DO NOT OPEN.
RISQUE DE CHOC ÉLECTRIQUE. NE PAS OUVRIR
WWW.GRAINFATHER.COM
IMPORTANT
SAFEGUARDS
SCAN AND
EXPLORE THE FREE
GRAINFATHER APP