Johnson Beer pH Strips pH 4.6 - 6.2
The optimum pH of yeast is between 5.2 - 5.5, which falls within the measuring capacity of the narrow-range Beer pH test strip (pH 4.6 - 6.2), to test for beer mash. Johnson Test Paper's Beer pH Strips pH 4.6 - 6.2 is both reliable and easy to read. 50 strips in the pack.
Remove one of the strips from the packet, and place it into your solution. Follow the instructions on the packet and then compare against the colour chart.
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