EHS424 (Not Liberal Arts) Food Sanitation 3 hrs. 3 crs. The sanitation of food production, processing and distribution; physical, chemical and biological aspects of sanitation; food packaging control, food additives, adulteration and misbranding. Preq: EHS 211, EHS 212, BIO 265, CHEM 230. Not open to the students with credit in HPEH 424.