[Tracydr]

Originally Posted by moray-eel-bite

I know this is an older thread/post, but I wanted to point out that the above calculation doesn't work. pH is a log scale, which means you can't simply add and divide like this. In fact, with the above sample information, the end pH if mixed in equal proportions would be 2.7, not 4.7 as suggested.

-log(0.003981mol/L*.5L + 0.0000001mol/L * 0.5L)= 2.7

Mixing vinegar and water in equal proportions is fine, and will prevent botulism, provided the food stuff itself doesn't have significant buffering capacity/alkalinity.

Cheers,

MEB

Thanks. That was bugging me.