Can bacteria live in ethanol?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Most bacteria cannot survive in ethanol concentrations above 60-70%, which is why alcohol is used as a disinfectant. However, some bacteria can survive in lower concentrations, and certain microorganisms have adapted to tolerate or even metabolize ethanol. Pure ethanol (100%) is actually less effective than 70% solutions because some water is needed for the antimicrobial action.
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