12:81:08:13Cooling
Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
and storing of milk. Milk must be cooled to forty-five degrees Fahrenheit or lower within two hours after milking. The blend temperature after the first milking and subsequent milkings may not exceed 50 degrees Fahrenheit. Each bulk tank, if the farm is using a bulk tank to store the farm's milk supply, must be equipped with a thermometer that is in good working condition.
Source: 41 SDR 218, effective June 30, 2015.