Cal. Food & Agric. Code § 32764

Condemned milk or cream which has been marked for identification shall be returned to the producer of the milk or cream, if requested by the producer, or shall be used in the manufacture of products other than products which are used for human consumption, or shall be destroyed. Such condemned milk or cream which has been marked for identification shall not be destroyed until the producer of the milk or cream has been notified. Upon such notification the producer shall immediately request the milk or cream be returned to him at his expense or request that it be destroyed.