Analysis of water alkalinity
Alkalinity is probably the most important parameter for beer producers as it has a direct effect on the mash. The value of alkalinity is closely linked to the style of beer that the brewer aims to produce. This parameter is therefore fundamental for achieving the sensory qualities sought.
Total alkalinity is defined as the concentration of strong acid, measured in milliequivalents per litre, needed to convert bicarbonate or carbonate in the sample in carbon dioxide at a pH of 4.3. With CDR BeerLab® it is possible to determine alkalinity easily and quickly without using glassware or laboratory material, by means of a photometric reading.
Method
Test Principle
The alkaline components of water react with a specific reagent leading to the formation of an adduct which absorbs at the wavelength of 366 nm. The absorbency of the sample is directly proportional to the alkalinity value.
Calibration curve
The calibration curve was constructed using the reference method of potentiometric titration.
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Reagent test Kits
Measuring range
| Analyses | Measuring range | Resolution | Repeatability |
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The Analyzers for process and quality control in beer brewing
CDR BeerLab®
- Complete analysis panel, supplied already configured
- Up to 16 determinations simultaneously
- Possibility of carrying out analyses of the same sample
- Integrated printer
- Full connections (LAN - USB - Bluetooth barcode/QR code reader)
CDR BeerLab® Jr
- Partial analysis panel, supplied configured with 3 analyses of your choice, implementable
- Up to 3 determinations simultaneously
- Wireless connection to external printer
- USB connections