Determination of Fermentable Sugars in beer and wort

CDR BeerLab® is the easy, fast and reliable testing system to be used directly at the brewery with no need of expertise in chemical analysisIn the fermentation yeasts use only fermentable sugars, glucose, fructose, maltose and in some cases maltotriose as well, to produce ethanol. The control of the residual fermentable sugars allows to attest the end of the fermentation and possibly dose the further addition of sugars for a second fermentation in bottle. The analysis of the fermentable sugars is also a very good parameter to determine the fermentative potential of the wort and so the potential alcohol content.
With CDR BeerLab® systems is possible to analyze this parameter in wort and in beer in few minutes. The analysis does not require skilled staff, laboratory glassware nor preparation of reagents: thanks to the instrument and to the optimization of the reference method correlated with it, the analysis is reliable and easy to perform directly in brewery.

The systems to test Fermentable Sugars in beer and wort

Fermentable Sugars can be measured using CDR BeerLab®, a system which enables you to carry out a wide panel of chemical analyses on beer and water, using a single instrument, in a process that is faster and simpler than traditional methods.
With CDR BeerLab® brewers and breweries of any size can independently carry out brewing process controls without having to rely on external laboratories.

  CDR BeerLab: chemical analysis system specifically designed to monitor the brewing process  in breweryCDR BEERLAB® CDR BeerLab<sup>®</sup> Junior: chemical analysis system specifically designed to monitor the brewing process  in breweryCDR BEERLAB® JUNIOR
Analyses Beer, Wort and Water:
Bitterness (IBU)
Fermentable Sugars
Alcohol by Volume (ABV)
Acetic acid
Yeast Vitality
Vicinal Diketons (VDKs)
Total sulfur dioxide
Free Amino Nitrogen (FAN) by OPA
Lactic Acid (D + L)
Polyphenols in beer
Carbohydrates in Beer
Calcium in Beer and Water
Alkalinity of water
Bicarbonate in Water
Zinc in Water
Sulfate in Water
Magnesium in Water
Potassium in Water
Chloride in Water

Configuration with tailored panel of analyses

Simultaneous Sample Analyses 16 3
Multiple Analyses on a Sample si


Test type: End Point.
Time testing: 6 minutes.
Are possible test sessions with several samples, up to 16 tests for CDR BeerLab® and 3 tests for CDR BeerLab® Junior.

Calibration Curve

Calibration curve obtained with samples of known values.

Calibration curve for fermentable sugar analysis in beer and wort with CDRBeerLab®

Test Principle

The sugars present in the sample are determined through an enzymatic method. The redox reaction is read in end point at 366 nm and the value is proportional to the concentration of fermentable sugars in the sample.


The evolution of sugars and of wort density during beer fermentation

Download the article "The evolution of sugars and of wort density during beer fermentation"When does the fermentation process end? How much sugar do you need to add in the priming phase? Researchers at the CDR chemical lab “Francesco Bonicolini” conducted a study on brewing with the aim of:

  • understanding which is the best method to determine the end of the fermentation process;
  • determining the residual sugar concentration in order to avoid problems in the priming phase.

For this purpose we studied the evolution of fermentable sugars as well as the variation of wort density during fermentation. [More …]

Analysis of Mashing in the Brewery

Download the case study "Analysis of Mashing in the Brewery" wiritten by Dr Lee Walsh, QCL, CDR BeerLab distributor in UKIs it possible to reduce the mashing time improving the process efficiency with in-house brewing process control? The case study shows that it is possible to reduce the mashing time improving the process efficiency using CDR BeerLab® to perform chemical analysis of beer for in-house brewering process control.

Download the case study “Analysis of Mashing in the Brewery” wiritten by Dr Lee Walsh, QCL, CDR BeerLab® distributor in UK

Reagent test Kits

The reagents are packaged in foil pouches containing 10 tubes useful to perform 10 analyses.

This is the minimum package that allows the use of CDR systems even to those who need to make a few analyses, thus not wasting reagents.

There are also boxes of 100 tests, however, packaged in 10 bags of 10 tubes containing the reagent.

Fermentable Sugar GFM (Glucose-Fructose-Maltose)

Code *300640 – The kit, designed for 100 tests, comprises.
Code *300645 – The kit, designed for 10 tests, comprises.

The reagents have a shelf-life of 12 months.

Fermentable Sugar GFMS (Glucose-Fructose-Maltose-Sacrose)

Code *300855:10 tests

Code *300850 : 100 tests (10 packages of 10 tests)

The reagents have a shelf-life of 12 months.

Processing Sample

Beer: The beer sample needs to be degassed (we recommend to use an ultrasonic bath) before taking the sample.

Wort: Dilute the sample 1:20. For higher accuracy in the analysis of wort we recommend to centrifuge the sample.

Measuring Range

Analysis Measuring range Resolution Repeatability
Sugars Beer 0.1 – 18 g/L 0.1 g/L 0.15 g/L
Sugars Wort 15 – 200 g/L 1 g/L 2 g/L

Reagents developed by CDR S.r.l - Quality System Certified ISO 9001 Ed. 2015 - Certificate n. 9115

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With the CDR system, you can perform your tests in total autonomy

Neither skilled staff nor a dedicated external laboratory is needed to use our systems. CDR FoodLab® optimizes traditional testing methods, making them faster and easier, while guaranteeing accuracy standards in line with the reference methods.

Analytical kit

CDR FoodLab® Analysis Systems use disposable pre-vialed reagents specifically developed by the research laboratories of CDR. The use of pre-vialed reagents and the analytical procedures allow:

  • a sample preparation that is quick and easy, when needed at all;
  • making analytical procedures extremely fast and easy;
  • removing all needs for complex calibration procedures.

Reagents come in aluminum packages containing 10 test tubes each to perform 10 tests (or packages for 100 tests containing 10 single packages of 10 test tubes each).

Just a few steps and results are yielded right away

Just a few steps will suffice to carry out your analysis in a rapid way in total autonomy. The system is composed of both the analyzer based on photometric technology and a kit of low toxicity, pre-vialed reagents, developed by CDR.

CDR FoodLab® is cost-effective because it does not require the use of expensive equipment and does not entail maintenance, assistance or calibration costs.
Find out how it works