I happen to have a large block of marble, so I cut off some pieces to try. I wanted pieces which are a) high surface area to weight ratio, b) not so thin as to be easily breakable and c) large enough to be really easy to find and remove. I think my ideal is a rod or bar long enough that it barely fits into my 8 gal fermenter buckets.cob wrote:actually any calcium carbonate will do.rad14701 wrote:ANY fresh water or sea water shells will work...
the shells are one source, pharmaceutical and food grade CC are made from marble, some antacids are made with CC.
I will be testing marble as a buffer as soon as I get a low-pH mash going, such as panela + dunder. Any guesses on how well it will work, both in terms of its buffering and also ease of use and reusability?