Campden Tablet into Star San Batch

If the pH of StarSan is below 3, the sanitizer will sanitize fine. However, since chemical reactions can sometimes get weird and dangerous, it would be a good idea to ask 5 star this question.

 

Based on my understanding of chemical equilibrium and the Wikipedia entry that suggests that bisulfite ion is a product of the following equilibrium, 2 HSO3− ⇌ H2O + S2O52−, I believe that reducing the pH of solution of metabisulfite would lower the amount of metabisulfite in solution (shift equilibrium to the left). But I'd need to track down some equilibrium constants (and maybe something more thorough than Wikipedia for reference?) to predict how much. I think the worst case scenario is you reduce the effectiveness of the metabisulfite. I probably would not worry about it, but why have you been working with bleach in the first place, if you have access to starsan?

 

Chlorine, is a cleaner as well as a disinfectant. I routinely use bleach to dissolve beer stone and clean brew ketles,fermenters and beer bottles. After a good rinse I will use starsan for fermenters or bottles for an extra layer od protection.

Waiting for inchrisin

 

I always rinse everything I've bleached with campden dissolved in hot water then star san it. Never had a problem that way. It only takes a minute