Each pack contains 50 indicator strips, range from pH 2.8 - 4.4.
We can then measure the acidity of the wine.
Immerse the pad into the test solution for up to 2 seconds & then remove. Shake off excess liquid. Compare the colour to chart to record the pH and therefore acidity of your wine.
Most wines fall around a pH reading of 3 or 4. For white wines, a desirable reading is a pH of approximately 3.2, while the best pH for red wines is around 3.6.