biocidal alcohol concentration

massimo tarditi arclab at
Mon Sep 22 13:28:29 EST 1997

Joachim Seemann wrote:

> Hello everybody,
> does anyone know
> 1) what concentration of ethanol or isopropanol can be considered
> biocidal in a food production process and
> 2) what (U.S./E.U./international) regulations apply to this question ?
> Thanks a lot for your E-mail.
> Joachim
> Joachim

  The right concentration to be used is 70% ethanol and 30% water. Pure
ethanol will dry the dust and promote biofilm increasing. Warning to
don't use denaturate alcohol for surfaces who coming in contact with
foods. Additives can contaminate the foods.
I don't now U.S. rules about this.
Massimo Tarditi <arclab at>
Biologo - Perito Chimico Industriale
Consulenze in Igiene e Microbiologia degli Alimenti

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