pH teststrimler 2.8-4,6 – 20 teststrimler/pakke (Brouwland, Belgium)
62,51 DKK
In StockpH-måling foretages bedst med et kalibreret pH-meter af god kvalitet, men en ca. bestemmlse af pH kan opnås med disse pH-strimler inden for der relevante område pH 2,8-4,6.
Beskrivelse
En upræcis men meget simpel bestemmelse af surhedsgraden (pH) kan måles med få dråber most, vin, cidr etc.
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pH-strips
To measure the pH of a sample of juice, wine, beer, kombucha. Packed per 20 strips with built-in colour scale! Reading per 0.2/0.3 pH.
- range 2,8-4,6 pH
- division 0,2/0,3 pH
| What is pH? pH is the measurement of the concentration of free hydrogen ions in a liquid. The pH of pure water is 7. Liquids with a larger concentration of hydrogen ions than water are acid and have a pH value less than 7. Liquids with a lower concentration of hydrogen ions on the other hand, are base and have a pH value higher than 7. The pH scale runs from 1 to 14.Can I measure the pH instead of the acidity of the must? No! In winemaking, the acidity is the representation of the amount of grams of acid in your wine/juice, usually expressed in grams of tartaric acid per litre. This can only be measured with a special indicating solution like Vinoferm® blue indicator. You can, however, use a pH-meter in combination with the blue indicator: instead of adding blue indicator until the colour turns blue, add blue indicator until a pH of 7.00 is obtained. This method is more accurate and gives better readings for, amongst other things, red juices! The combination pH-meter, blue indicator and an automatic burette is a professional set-up for accurately measuring acidity. |