Section 7-204.12 - Chemicals for Washing, Treatment, Storage, and Processing of Fruits and Vegetables, Criteria(A) Chemicals used to wash or peel raw, whole fruits and vegetables shall meet the requirements specified in 21 CFR 173.315 - Chemicals used in washing or to assist in the peeling of fruits and vegetables. P(B) Ozone as an antimicrobial agent used in the treatment, storage, and processing of fruits and vegetables in a FOOD ESTABLISHMENT shall meet the requirements specified in 21 CFR 173.368 - Ozone.Wis. Admin. Code Department of Health Services § 7-204.12