This invention provides processes comprising contacting at least one unopeneddefeathered poultry carcass withwater containing a microbiocidal composition, optionally opening andeviscerating at least one unopened defeathered poultry carcassthat was wetted subjecting at least one eviscerated poultry carcass to inside-outside washing with water containing a microbiocidalcomposition placing at least one eviscerated poultry carcass in a chill tankinto contact with chill water containing a microbiocidalcomposition contacting parts of poultry resulting from processing of poultrycontaining a microbiocidal composition. The water inthese processes contains a microbiocidal composition comprising I) one or moresurfactants and II) a microbiocidal amount of abiocide. The surfactants include amine oxides and/or betaines. The biocidesinclude various chlorine -based and bromine- basedbiocides chlorine dioxide and peracetic acid.
