Iodine based sanitizer that is a powerful, broad spectrum antimicrobial product that kills a wide range of bugs that are waiting to infect your fermentation. Unlike acid based sanitizers, Iodophor reliably kills yeast, mold, fungus, bacteria, viruses and blood borne pathogens. CAUTION: Contains IODINE – some people have allergic reactions to iodine. Will also stain some plastics.