Anybody know what KM is?

I was browsing forums looking for any new tips to prevent wine from becoming vinegar (My last batch was ruined and want to make sure that does not happen again) and I stumbled cross this mysterious comment

The user who posted it is no longer active, and the website will not let me post on this chain. Does anyone know what this mysterious KM is, and if it really completely removes the chance of making vinegar?

Thanks im advance!

Topic vinegar additives homebrew

Category Mac

1
answered at

Based on the little bit of context I'm going to guess this is an odd/inaccurate shorthand for potassium metabisulfate.

Although the real shorthand is K₂S₂O₅ they're likely using k to represent potassium and m for the metabisulfate.

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