Coffee Laboratory Grind Sizer User manual

Instruction Manual
Note: The Grind Sizer is designed
to give an approximate volumetric
analysis of coffee grind size
distribution in a field or retail
setting. Results may vary relative
to the size range and moisture
level of the particles, as well as
the time and level of shaking. A
balance may be used to more
accurately reflect retained
amounts.
TABLE OF CONTENTS
Chapter 1: System Description................................................................. p. 02
Function and Theory.............................................................................. p. 02
System Components ............................................................................. p. 03
Chapter 2: System Installation.................................................................. p. 04
Chapter 3: System Operation ................................................................... p. 05
Chapter 4: System Maintenance .............................................................. p. 05
Chapter 5: System Troubleshooting......................................................... p. 06
Chapter 6: System Schematic..........................................................
p. 06
Chapter78: Replacement Parts List........................................................... p. 7
Warranty and Repair.................................................................................. p. 7
Helpful Hints………………………………………………………………………..p. 8
Coffee Laboratory 589 Rappahannock Drive White Stone Va 22578 TEL [phone]
www.coffeelabequipment.com

DOCUMENTATION CONVENTIONS
This manual uses the following conventions to present information:
WARNING
An exclamation point icon indicates a WARNING of a situation or condition that
could lead to personal injury or death. You should not proceed until you read and
thoroughly understand the
WARNING message.
CAUTION
A raised hand icon indicates CAUTION information that relates to a situation or
condition that could lead to equipment malfunction or damage. You should not
proceed until you read and thoroughly understand the
CAUTION message.
NOTE
A note icon indicates NOTE information. Notes provide additional or supplementary information
about an activity or concept.
Chapter 1: System Description
Function and Theory
The Coffee Grind Sizer is a mechanical sieve kit designed to provide reliable
grain size analysis. It features 6 stainless steel coffee grind screens ranging in
size from US sieve No. 12 to 60, plus an additional 14 sieves. The sample is
placed into the top of five clear acrylic cylinders and shaken to distribute
particles. Volumetric percentages are indicated on the Shaker frame.
Page 2
Coffee Laboratory 589 Rappahannock Drive White Stone Va 22578 TEL [phone]
www.coffeelabequipment.com

Coffee Laboratory 589 Rappahannock Drive White Stone Va 22578 TEL [phone]
www.coffeelabequipment.com

Sieves: • Stainless steel mesh and edging
• Twenty (20) interchangeable units
• Sizes:
Standard Coffee Grind Analysis Mesh Sizes
Sieve Designation
ASTME 11 Designation
60 OPN # 12
46 OPN
# 16
30 OPN
# 20
23 OPN
# 30
15 OPN
# 40
09 OPN
# 60
Other Sizes
187 OPN #4
132 OPN #6
90 OPN #8
72 OPN #10
51 OPN #14
40 OPN #18
26 OPN #25
20 OPN #35
055 OPN #100
041 OPN #140
029 OPN #200
024 OPN #230
021 OPN #270
The mesh-opening size is stamped on the flat face edge of each sieve.
Cylinders: • Clear acrylic cylinders
• 2” I.D.
• 1.85” long
Frame: • ABS plastic
• 4” O.D.
• 14.5” long
Chapter 2: System Installation
Your Grind Sizer comes as an assembled unit. When unpacking, be sure
that all necessary components have been included and are not damaged.
Refer to page 5, System Components for a complete list.
Page 4
Coffee Laboratory 589 Rappahannock Drive White Stone Va 22578 TEL [phone]
www.coffeelabequipment.com

Chapter 3: System Operation
1. Press the selected sieves into the recess of the cylinders; the flat side
of the sieve should be pressed against the flat face of the cylinder
(the sieve has been constructed to fit tightly within the cylinder).
Apply pressure to the metal edge when inserting or removing the
pieces.
2.
Insert the foam gasket ring which compensates for the variable
thickness of the sieves.
3.
Stack the cylinders; the plug is the bottom pan and the cap is the top
of the assembly.
5.
Measure the amount of sample to be sieved. About half of one cylinder works
best with coffee grinds
6.
Remove the top and pour the measured sample into the upper
cylinder.
7.
Replace the top and insert the stack of cylinders into the frame.
8.
Turn the knob to secure the stack of cylinders within the frame.
9.
Check to ensure that the top of each sieve corresponds to the “zero”
graduation.
10. Shake the unit to distribute the different sized particles.
11. Read the percentages of each of the quantities retained by the
various sieves and the bottom pan (if the amount to be sieved
corresponds to the volume on the graduated scale, the size
distribution can be read as a percent of the total sample: volume =
100ml = 100 percent).
NOTE: For coffee grinds it is often more practical, and useful, to ensure that the amount of fines below
#30 mesh size does not exceed 20% by weight.
The larger aperture screens are useful in separating out the
larger particles, and keeping them from clogging up the next size screen down.
Chapter 4: System Maintenance
x Clean component pieces with mild detergent and water. Rinse with clean
tap water.
x A soft bristle plastic brush may be used to dislodge small grinds.
x Allow to air dry.
Page 5
Coffee Laboratory 589 Rappahannock Drive White Stone Va 22578 TEL [phone]
www.coffeelabequipment.com

Coffee Laboratory 589 Rappahannock Drive White Stone Va 22578 TEL [phone]
www.coffeelabequipment.com

Chapter 7: Replacement Parts List
Part Number Part Description
51450001 Assy, Screen Pack, SS, Grind Shaker
51450002
Assy, Frame, PC, Grind Shaker
21450001
Cylinder, ACR, Grind Shaker
11450001
Gasket, Grind Shaker
21450002
Plug, ACR, Grind Shaker
21450003
Cap, ACR, Grind Shaker
11450022
Manual, Grind Shaker
The Warranty
For a period of one (1) year from date of first sale, product is warranted to
be free from defects in materials and workmanship. Coffee Laboratory
agrees to repair or replace, at Coffee Laboratory’s option, the portion
proving defective, or at our option to refund the purchase price thereof.
Coffee Laboratory will have no warranty obligation if the product is
subjected to abnormal operating conditions, accident, abuse, misuse,
unauthorized modification, alteration, repair, or replacement of wear parts.
User assumes all other risk, if any, including the risk of injury, loss, or
damage, direct or consequential, arising out of the use, misuse, or inability
to use this product. User agrees to use, maintain and install product in
accordance with recommendations and instructions. User is responsible for
transportation charges connected to the repair or replacement of product
under this warranty.
Equipment Return Policy
A Return Material Authorization number (RMA #) is required prior to return
of any equipment to our facilities, please call for appropriate location. An
RMA # will be issued upon receipt of your request to return equipment,
which should include reasons for the return. Your return shipment to us
must have this RMA # clearly marked on the outside of the package.
Proof of date of purchase is required for processing of all warranty
requests.
This policy applies to both equipment sales and repair orders.
FOR A RETURN MATERIAL AUTHORIZATION, PLEASE CALL OUR
SERVICE DEPARTMENT AT 1-804-435-5522
Model Number: ________________
Serial Number:
________________
Date:
________________
Equipment Decontamination
Prior to return, all equipment must be thoroughly cleaned and
decontaminated. Please make note on RMA form, the use of equipment,
contaminants equipment was exposed to, and decontamination
solutions/methods used.
Coffee Laboratory reserves the right to refuse any equipment not properly
decontaminated. Coffee Laboratory may also choose to decontaminate
equipment for a fee, which will be applied to the repair order invoice.
Page 7
Coffee Laboratory 589 Rappahannock Drive White Stone Va 22578 TEL [phone]
www.coffeelabequipment.com

HELPFUL HINTS AND APPLICATIONS
The Coffee Grind Sizer is a manual sieve kit designed to provide a quick
visual analysis of coffee grind size distribution. It features six stainless steel
screens ranging in size from US sieve No. 12 to 30, plus an additional 14
sieves. The sample is placed into the top of the five clear acrylic cylinders,
then shaken to distribute the coffee particles.
For an actual detailed grind analysis, a sieve shaker is required, but for a
quick check to ensure that the amount of fines passing the #30 sieve, don't
exceed 24% (*COFFEE:AN EXPORTERS GUIDE Geneva 2002)
as this may cause bitterness, the Grind Sizer can be a useful tool, especially
for use in remote locations and cafe's, where a sieve shaker isn't practical.
Coffee Laboratory 589 Rappahannock Drive White Stone Va 22578 TEL [phone]
www.coffeelabequipment.com