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Chemical and Microbial Gusmer Analytical Services
Individual Analysis Analysis
PREPARING AND SENDING SAMPLES 1. In order to ensure the most accurate analysis, please send full (topped) containers of beer optimally packaged for shipping to minimize breakage. 2. Download and submit a completed Analysis Request Form with your samples. A form can be obtained by scanning the QR code on this page or by calling 707.224.7903. 3. If specific label information is required on the report, please make sure that this information is supplied on the sample request. 4. Samples may be sent via UPS or FedEx. The US Postal Service does not accept alcohol for shipping. Samples may also be dropped off in person.
Volume Price
Alcohol
125 mL
$20
At Gusmer, our advanced facility offers more than just standard testing. We provide customized products and solutions tailored to your specific needs. When we help you identify an issue, we can provide insights and recommend changes to resolve it and prevent similar problems in the future. Accurate We have a rigorous quality control system backed up with a global inter-laboratory testing program. Prompt Receive results for most analyses within 24 hours. Trustworthy With over 100 years of experience in the beverage sector, Gusmer is a trusted leader. We invite you to choose Gusmer for your analytical laboratory needs and experience our dedication to “Service with Knowledge” ® firsthand. If you have questions regarding samples for analysis, please call the lab at 707.224.7903 ext. 306. Minimum analysis charge is $25. Samples should be dropped off or mailed to 640-D Airpark Road, Napa CA 94558.
Bittering Units
125 mL
$35
Calories
125 mL
$25
Chill Haze (Rapid)
125 mL
$35
Color (SRM, EBC)
125 mL
$20
Free and Total SO 2
125 mL
$25
Sugars (Maltose, Sucrose, Fructose, Glucose)
125 mL
$40
Total Titratable Acidity (as Lactic Acid)
125 mL
$20
Turbidity
125 mL
$15
Analytical Request Form To download the analysis request form from Gusmer’s website, please scan this QR code. Practical Brewery Formulas Brewhouse Efficiency =
Beer Panels
Type
Analysis
Volume Price
Extract Produced ———————— x 100 Potential Extract
GEOMETRY Circle Circumference (C): = 2 π R
ATTENUATION % Alcohol by weight ( a ):
Basic Beer Chemistry Extracts, Alcohol, pH, Color, Bittering Units
125 mL
$45
Where
Extract produced is found by accurately determining the volume and the “gravity” of the wort collected in the starting tub, Potential extract is the sum of the products obtained by multiplying the weights of malt and adjuncts by their respective laboratory “as is” yields (fine grind yield for malt).
2 finished cans/ bottles
= 0.42 (OE – AE) = 0.52 (OR – RE)
Area (A): = π R 2
Finished Beer
Extracts, Alcohol, pH, Color, Bittering Units, CO 2 , Air, Yeast/Mold/Bacteria (UBA,MRS)
$60
And
Sphere Area (A): = 4 π R 2
Stability Panel (Chill Haze) Filterability Panel 1 grade Filterability Panel 2 grade Membrane Clogging Index
% Real Extract (RE) :
Tannin and Protein Content, Stability Recommendation
125 mL
$35
4 π R 3 ——— 3
a ——— + AE 2.22
Volume (V): =
=
MIXING Aa + Bb = Cc Where
Pre & Post NTU Readings 1 Filter Grade, Filter Recommendation
Varies*
$60
% Original Extract (OE) : =
Cylinder Area (A) of curved surface: = 2 π R H
a ——— + RE 0.52 a ——— + AE 0.42
A and B
= quantities mixed
Pre & Post NTU Readings 2 Filter Grades, Filter Recommendation
Varies*
$100
Area (A) of each base:= π R 2
=
a and b
= corresponding properties
Volume (V): = π R 2 H
Clogging index value to determine if beer is ready for sterile filtration Note: Should not be done more than 5 days prior to sterile filtration/bottling
500 mL
$40
C = A + B
= quantity of mix
2 a + RE - 0.22 % Apparent Degree of Attenuation (ADA) : = OE - AE ————— OE
Cone Area (A) of curved surface: = π R √ R 2 + H 2
c = property of mix Example: If 85 bbls of water at 120 °F are mixed with 55 bbls at 212 ºF, what is the temperature of the mix? Let X = ºF of the mix; then 85 x 120 + 55 x 212 = 140 X , and
Export Panel
Please contact the lab for more information (707) 224-7903
Area (A) of base:= π R 2
*The sample volume required for Filterability testing is dependent on your specific filtration setup and requirements. Please contact the lab to determine how much sample is needed.
π R 2 H ——— 3
% Real Degree of Attenuation (RDA) : = = 0.81 x ADA Abbreviations OE - RE ————— OE
Volume (V): =
Microbiological Services
Plain Dished Heads of Cylindrical Tanks Volume (V): = 0.1372 π R 3 each, approximately Where R = radius of tank, and 2 R = radius of dished head EXTRACT Convert ºP to lbs/bbl: = ALCOHOL Alcohol by Weight x 1.25 = Alcohol by Volume Abbreviations C = circumference A = area V = volume π = 3.14159 R = radius H = height ( 259+ O P) O P —————— 100
10,200 + 11,660 ———————— = 156.1 140
X =
Procedure Comments
Volume Price
Example: How many bbls of beer of 3.8% and 3.2% by weight of alcohol, respectively, must be blended in order to obtain 650 bbls of beer of 3.6% alcohol? Let X = number of bbls of 3.8% beer. Then (650 – X ) = number of bbls of 3.2% beer. Substituting in formula: X x 3.8 + (650 - X ) x 3.2 = 650 x 3.6 0.6 X = 260 X = 433 Answer: Mix 433 bbls of 3.8% beer with 217 bbls of 3.2% beer.
a = % alcohol by weight OE = % Original Extract RE = % Real Extract AE = % Apparent Extract RDA = % Real Degree of Attenuation ADA = % Apparent Degree of Attenuation
Microscopic Exam Scan for microbes and debris (plating may be recommended to determine viability)
125 mL
$25
Yeast, Mold, & Bacteria (UBA, MRS) Yeast & Mold Only (UBA) Bacteria Only (MRS) Yeast, Mold, & Bacteria (UBA, MRS) Yeast & Mold Only (UBA) Bacteria Only (MRS)
125 mL 125 mL 125 mL 375 mL 375 mL 375 mL
$25 $25 $25 $40 $25 $25
Culture, Direct – unpackaged beer Culture, Membrane Filtration – packaged beer
Yeast count Viability Hemocytometer
125 mL
$35
46 2026 - 2027 Gusmer Enterprises, Inc. Brewing Products Catalog
47 Order Info: cs@gusmerenterprises.com | 866.213.1131 | www.GusmerBeer.com
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