pH Indicator Strips 4.0-7.0
Accurate and easy to use pH-indicator test strips for cheese making. These strips are a cost-effective way to determine the general pH of liquid milk and whey in cheese making. The pH strips measure in the 4.0-7.0 range (ideal for cheese making) with pH increments of .2-.3.
These pH indicator strips have an advantage over indicator paper, since the indicator strips do not bleed, the strip can be dipped into the measurement medium without contaminating it.
- 100 pH indicator strips, non-bleeding
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They don't work after a while
Initially these strips seemed to work fairly well. They at least changed color as predicted. However, even after storing them in a plastic ziplock baggie sealed as well as possible, they quit giving any indication whatsoever. I believe that once exposed to air they lose their ability to register acidity by changing color. This was very disappointing since they are relatively pricey.