Fermentable sugars analysis in wine and must

CDR WineLab® is the fast, simple and reliable wine analysis system to be used right in the winery with no need of qualified personnel in the field of chemical assaysWith CDR WineLab® the determination of the fermentable sugars in the wine and must is based on the OIV method, but it is easier and faster. In addition, the reagents have a 18-month stability, while those under the OIV method just over 1 month.

CDR made available a new fermentable sugars test, which allows to determine, in addition to the value of glucose and fructose, also the value of sucrose.

CDR WineLab® sugar analysis is based on the reference method OIV-MA-AS311-02

The Analyzers CDR WineLab® for determining Fermentable Sugars in Wine and Must

The system is supplied pre-calibrated and ready for use.
Results are expressed in accordance with the reference method.
It is also possible to standardize the system using samples with a known titration.
The reagents have a shelf-life untill 18 months
The analytical methods are simple: the system does not require an equipped laboratory or skilled staff.

  CDR WineLab wine analyzer CDR WINELAB® CDR WineLab wine analyzer Junior VersionCDR WINELAB® JUNIOR
Analyses Wine and Must:
Alcohol by Volume
Acetic acid (volatile acidity)
Fermentable Sugars
Total Acidity
L-Lactic Acid
L-Malic Acid
Free sulfur dioxide
Total sulfur dioxide
Yeast Assimilable Nitrogen (YAN)
Galacturonic Acid
Gluconic Acid
Acetaldehyde (Ethanal)
Total Polyphenols Index
Colour (tonality and intensity)
Total Polyphenols (Folin Ciocalteu)
Anthocyanins Extraction on Grapes
Total Anthocyanins
Polymerised Anthocyanins
HCl Index
Configuration with tailored panel of analyses
Simultaneous Sample Analyses 16 3
Multiple Analyses on a Sample si

Two different kits for the determination of fermentable sugar

  • Fermentable Sugar GF (Glucose-Fructose)
    With this kit you can determine the total amount of fermentable sugars: Glucose + Fructose 
  • Fermentable sugars GFS (Glucose-Fructose-Sucrose)
    With this kit you can determine the total amount of fermentable sugars: Glucose + Fructose +  Sucrose
  • Glucose-Fructose
    With this kit you can determine the value of glucose and fructose separately


Test type: End Point.
Time testing: one test 6 minutes – 50 Test/hour.
Are possible test sessions with several samples, up to a maximum of 16.
It is also possible to standardize the system using samples with a known value.

Calibration curve

The calibration curve of CDR WineLab®, obtained using reference methods, confirms the excellent linearity of the system over the whole testing range.

correlation between determination of Total sugar in wine and must  with CDR WineLab and HPLC method

Test Principle

Glucose + Fructose + ATP + NAD+reazionezuccherivino ADP + gluconate 6-P + NADH

The glucose and fructose present in the sample are determined enzymatically and therefore are not influenced by the presence of the remaining reducing sugars. The Redox reaction is read at 366 nm (end-point) and the value is directly proportional to the concentration of glucose and fructose in the sample.

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 GF (Glucose-Fructose)

Code *300384:10 tests

Code *300380 : 100 tests (10 packages of 10 tests)

Fermentable sugars GFS (Glucose-Fructose-Sucrose)

Code *300815: 10 tests

Code *300810 : 100 tests (10 packages of 10 tests)

Glucose Fructose

Code *300355: 10 tests

Code *300335 : 100 tests (10 packages of 10 tests)

The reagents have a shelf-life of 18 months

Sample Processing 

Wine: use as is or diluted.

Measuring Range

Test Measuring Range Resolution Repeatibility
Sugars (glu,fru) [0.1-18 g/L] wine 0,1 – 8 g/L 0,1 g/L 0.2 g/L
Sugars (glu,fru) [15-350 g/L] wine and must 15 – 350 g/L 1 g/L 2 g/L
Sugars (glu,fru,suc) [15-350 g/L] wine and must 15 – 350 g/L 1 g/L 2 g/L
Sugars (glu,fru,suc) [4-100 g/L] sparkling wine 4 – 100 g/L 1 g/L 2 g/L g/L
Glucose Fructose [0.1-18 g/L] wine 0,1 – 8 g/L 0,1 g/L 0,2 g/L
Glucose Fructose [15-350 g/L] wine and must 15 – 350 g/L 1 g/L 2 g/L

To increase the range of measurement repeat the analysis with half of the sample volume and multiply the result by 2. The measuring range can change depending on the absorbance of the wine.

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

Click and Discover more about CDR WineLab®: analysis system fast, simple to use and reliable for determining multiple parameters in wine and must

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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