Determination of Starch 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 analysis

In the mashing phase starch is converted in fermentable sugars by specific enzymes (amylase) present in the malt. A control of the real conversion can be made measuring the residual starch in wort, so that you can continue with the remaining operations.
With CDR BeerLab® systems it is possible to obtain reliable results on starch immediately, carrying out the analysis during the mashing phase, directly in brewery.

The systems to test Starch in beer and wort

Starch levels 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 Junior: chemical analysis system specifically designed to monitor the brewing process  in breweryCDR BEERLAB® JUNIOR
Analyses

Beer and Wort:
Fermentable Sugars
Lactic Acid (D + L)
Bitterness
Color
Alcohol Content
pH
Starch
Free Aminio Nitrogen by OPA (FAN)
Total sulfur dioxide (SO2)
Vicinal diketones (VDKs)
Acetic Acid

Water:
Calcium
Magnesium
Bicarbonate
Chloride
Potassium
Sulfate
Zinc

Configuration with tailored panel of analyses

Beer and Wort:
Fermentable Sugars
Lactic Acid (D + L)
Bitterness
Color
Alcohol Content
pH
Starch
Free Aminio Nitrogen by OPA (FAN)
Total sulfur dioxide (SO2)
Vicinal diketones (VDKs)
Acetic Acid

Water:
Calcium
Magnesium
Bicarbonate
Chloride
Potassium
Sulfate
Zinc

Simultaneous Sample Analyses 16 3
Multiple Analyses on a Sample si

Method

Test type: End Point.
Time testing: 1 minute.
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 of starch analysis perfomed by CDR BeerLab

Test Principle

Starch reacts with a solution of stabilized iodine, producing a violet coloring, measurable at 620 nm in end point.

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.

Code *300615 – The kit, designed for 10 tests
Code *300610 – The kit, designed for 100 tests

The reagents have a shelf-life of 6 months.

Processing of Sample Volume

Use on wort. For higher accuracy in the analysis of wort we recommend to centrifuge the sample.

Measuring Range

Analysis Measuring range Sample volume Resolution Repeatability
Starch 0.1 – 10 g/L 100 μL 0.01 g/L 0.05 g/L

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

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Starch was last modified: March 16th, 2018 by CDR s.r.l.