![pH Test Paper for Kombucha Brewing, 0.5 to 5.5 pH [16 Foot Roll with Dispenser]: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/617x17DMIGL.jpg "pH Test Paper for Kombucha Brewing, 0.5 to 5.5 pH [16 Foot Roll with Dispenser]: Amazon.com: Industrial & Scientific")
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