All manufactured dairy products which are handled, displayed, transported, exposed for sale, offered for sale, or sold in Montana shall be considered perishable and potentially hazardous and shall be kept at safe temperature or below; provided, however, that:
(1) nothing in this requirement shall be construed as prohibiting higher temperatures which are necessary for curing, ripening, or aging of certain cheeses and cultured products; and
(2) this section does not apply to manufactured dairy products packaged in hermetically sealed containers or sterile manufactured dairy products which do not require refrigeration for their safekeeping.