(2) As used in this section, the term "unlawful" means:
(a) Milk, cream, fluid milk or dairy product that contains dirt, filth, oil or other foreign matter that may render the milk, cream, fluid milk or dairy product, or dairy products derived from them, unfit for human consumption.
(b) Milk, cream, fluid milk or dairy product that is stale, cheesy, rancid, putrid, decomposed or actively foaming. [1953 c.686 §14; 1999 c.197 §34]