bleak
Well-Known Member
This has probably been covered before, but I didn't come up with anything pertinent when I searched. John Palmer's book states that Phosphoric acid is not recommended for lowering mash pH, because it reacts chemically with calcium in the mash and changes the whole playing field, rather than simply adjusting the pH. Obviously Phosphoric acid has been recommended here many times, and I was wondering if Palmer is simply mistaken, or is overstating the reaction with calcium. Among those here who swear by Phosphoric, what are your thoughts about what Palmer says?