The Standard Plate Count of Milk as Affected by the Temperature of Incubation

Abstract

The purpose of the study was to ascertain the reliability of the present temperatures (32 or 35 C. for 48 3 hours) of incubation in the Standard Plate Count of Milk. The study was prompted by observations that other temperatures (usually lower than 32 or 35 C. for longer incubation times) occasionally detect bacteria which are unable to grow at the standard temperatures.