The caustic effects crop up from becoming hugely alkaline, however, if potassium hydroxide is neutralised having a non-harmful acid then it gets to be a non-poisonous potassium salt. It really is authorised being a foodstuff additive beneath the code E525. Don't forget metals lose electrons to variety cations and nonmetals https://holdenstcts.full-design.com/the-fact-about-is-potassium-cyanide-deadly-that-no-one-is-suggesting-72995946