LAB Alcohol Tolerate

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I was wondering, at what Alcohol percentage per water can LAB survive?

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We use lactobacillus (Plantarum mostly, which is pretty common in the wild) a lot in sour beer brewing and the lacto does not seem to be bothered much by anything under 5% … around 10% growth is starting to get impaired but some strains can survive 12-16% and still grow a bit.

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This is something I have never looked at. I know once the KNF Solutions are diluted, there is enough water that it will not inhibit the LAB.

Often times I make a concentrated maintenance mix containing KNF Medicine, KNF Cleanser, and KNF Food, and though sometimes it may be tempting to put LAB into that mix, it is not a good idea in the concentrated form, but once I dilute this mix 20ml/gal, THEN I add the LAB.

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