Review on Biopharm Calibration Traceable Reference Standards by John Hall

I am a home cheese maker and one of the things I need to be aware of when making cheese is the acidity of the cheese during manufacture. did. To do this, you need a pH meter, so you need to calibrate it regularly. This is where this product comes to the rescue. These are certified calibration solutions that you can use on your pH meter to ensure it reads reasonably. The product is very easy to use as the bottles are clearly labeled and the liquids are colored so you are unlikely to confuse a 4.0 with a 7.0. However, since pH meters don't need to be recalibrated that often, and I don't make tons of cheese every day, the amount of liquid included in this packet should last you for many months - likely well past the certified calibration date. what a shame for him.