§ 59.119. Cooling.

 Milk shall be cooled in accordance with the following requirements:

   (1)  Can milk shall be promptly cooled to 50°F or lower and maintained at that temperature or less until delivery to the milk plant within 30 hours of initial milking.

   (2)  Milk, if not cooled, shall be delivered to the milk plant within 2 hours after milking.

   (3)  Bulk milk shall be cooled to 40°F within 2 hours after milking. Cooled milk shall not be allowed to rise above a temperature of 50°F by subsequent addition of milk to bulk tank and shall be delivered to milk plant within 66 hours of the initial milking.

   (4)  Bulk tank milk shall be cooled to 40°F or lower at time of pick-up.

   (5)  Transshipment of milk from plant to plant shall be acceptable only if received at a temperature of 45°F or less.

   (6)  Agitation and refrigeration on all farm bulk milk cooling and holding tanks shall be automatically controlled, except as provided for in paragraph (7). Automatic controls shall consist of an interval timer to require agitation of the milk for a minimum period of two minutes in every 60-minute interval and refrigeration to maintain mixed milk temperature between 32°F and 40°F.

   (7)  In lieu of automatic refrigeration controls, as provided for in paragraph (6), an accurate 48-hour recording thermometer shall be installed to provide a continuous and true record of milk temperature. Each temperature recording chart shall be dated and signed by the approved sampler, filed chronologically in the milkhouse for not less than 6 months, and readily accessible for regulatory review.

   (8)  Recirculated cold water which is used in plate or tubular coolers or heat exchangers shall be from a safe source and protected from contamination. Such water shall be tested semiannually and shall comply with the bacteriological standards cited in §  59.108 (relating to water supply).

   This section cited in 7 Pa. Code §  59.31 (relating to inspection of dairy farms); and 7 Pa. Code §  59.302 (relating to raw milk).