Patent ID: 6998369

Claim:
A method for antimicrobial treatment comprising applying to microbes a composition containing a diluting solvent; an antimicrobially-active solvent having a density different from the density of the diluting solvent and comprising butyl alcohol, t-butanol, ether, hydroxyether, dibasic ester or C 1-16 protonated carboxylic acid; an additional antimicrobial agent comprising chloroperbenzoic acid, peracetic acid, perheptanoic acid, peroctanoic acid, perdecanoic acid, performic acid, percitric acid, perglycolic acid, perlactic acid, or perbenzoic acid; and an optional cosolvent or surfactant; wherein the amounts of antimicrobially-active solvent and additional antimicrobial agent are sufficiently high and the amount of cosolvent or surfactant is sufficiently low so that the treatment will provide greater than a 1-log order reduction in a population of Bacillus cereus within 10 seconds at 60° C.