Our pH Color charts were developed using NIST-traceable pH buffers at 25°C. Colorimetric pH test strips do not offer “temperature compensation.” Care should be used when comparing results using test strips to those obtained with [...]
1) The pads on the strips are yellow when they are made. If they are not yellow then they have been exposed to heat, humidity, light, or some other detrimental condition. 2) The test strips [...]
The Universal pH test paper does undergo some sublimation over time. This is evidenced by the slight discoloration of the color chart and vial. We have found that this sublimation does not normally adversely affect [...]
We have tested the blue litmus with multiple pH buffers. The blue paper is blue at pH 8. At pH 7, the sample is maybe just a little red. The real change to red seems [...]
It is not a good idea to dilute the sample with water. While this helps to avoid the color stain, dilution of the hydrogen ion concentration will change the pH. A better suggestion for measuring [...]
Our Wine pH test strips, measuring from 2.8-4.4 work great for testing kombucha tea as well.
Monitoring the pH of the Mash, Wort, and Beer is necessary as the Yeast will develop differing physiological states, and the presence or absence of Organic Acids and the use of mineral Ions during the [...]
Typically, only two of the three pads changes color at any given pH level, which you match with the closest three blocks on the color chart. Changes can be subtle, and the colors may appear [...]
Prior to, and during the process of fermentation, a measure of the pH of the solution is quite important. The correct pH must be established initially, and should be monitored throughout the process in order [...]