Don’t test hot water. The pH reading goes crazy. It’s like trying to measure the mood of a screaming toddler. Wait for it to cool.
Don’t use dirty containers. That old pickle jar has vinegar ghosts. Your results will be “acidic with a hint of dill.” Not useful.
Always test twice. Once is a guess. Twice is a suspicion. Three times is science. Four times is obsession. You do you.
