Determination of pH in wort
pH value in the wort in the mashing phase is a very important parameter to assure the perfect conversion of starch in simple sugars. The possibility to measure in wort this parameter allows to make the necessary adjustments immediately and to reduce the time of the mashing phase.
Features and benefits of CDR BeerLab®
The analysis method of CDR BeerLab® systems is correlated with reference potentiometric method with ph-meter, it can be performed in few simple steps obtaining in 1 minute accurated and precise results. You do not need to calibrate the instrument nor to use calibration solutions, making the analytical control procedure clear and reliable.
Method
Sample treatment
Use only on wort. For higher accuracy in the analysis of wort we recommend to centrifuge (code 222061) the sample.
Principle of the test
pH value determination is made through a colorimetric acid-base reaction in which a phenol derived, added to the matrix to be analyzed, causes a variation of the coloration. The magnitude of the coloration, measured at 620 nm is correlated with the pH of the sample.
Calibration curve
Samples were analysed for pH using the CDR BeerLab® and the reference UKAS accredited method (Campden BRI Method AM/029 based on Analytica EBC, 9.35, 2004 and 8.17, 1999). The curve was obtained as part of the comparative study of the analytical methods of CDR BeerLab® and the reference methods conducted by the Campden BRI international laboratory.
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Reagent test Kits
Code*300625: 10 tests
Measuring range
| Analyses | Measuring range | Resolution | Repeatability |
|---|---|---|---|
| pH | 3.6 - 6 | 0.01 | 0.01 |
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, customisable configuration
Up to 3 determinations simultaneously
Wireless connection to external printer
USB connections