§ 59.761. Rooms and compartments.

 (a)  Coolers and freezers. The coolers and freezers shall be equipped with facilities for maintaining proper temperature and humidity conditions, consistent with good commercial practices for the applicable product, to protect the quality and condition of the products during storage or during tempering prior to further processing. Coolers and freezers shall be kept clean, orderly, free from insects, rodents and mold, and maintained in good repair. They shall be adequately lighted and proper circulation of air shall be maintained at all times. The floors, walls and ceilings shall be of a construction that permits thorough cleaning.

 (b)  Churn rooms. Churn rooms, in addition to proper construction and sanitation, shall be equipped so the air is kept free from objectionable odors and vapors and extreme temperatures by means of adequate ventilation and exhaust systems or air conditioning and heating facilities.

 (c)  Print and bulk packaging rooms. Rooms used for packaging print or bulk butter and related products shall, in addition to proper construction and sanitation, provide an atmosphere relatively free from mold—no more than 10 mold colonies per cubic foot of air—dust, or other airborne contamination and be maintained at a reasonable room temperature.