"Processing" means separating, standardizing, pasteurizing, sterilizing, evaporating, condensing, canning, bottling, packaging, or otherwise preparing milk to manufacture or produce any dairy product. "Processing" does not, however, include separating by a producer, on the dairy where the milk is produced, and milk separated by a producer on the dairy shall not be deemed to have been processed.
Ca. Food and Agric. Code § 64014