1. The aim of this work was to investigate the influence of cold storage of raw milk prior to processing and product manufacture on the quality of the pasteurized milk and products derived from it. The work involved a study of the quality of raw milk from a bulk silo purchased from a dairy factory in the West of Scotland. Three trials were undertaken during the period 1979-1980. The raw milks were delivered by road tanker in quantities of around 2,500 litres for each trial. On delivery a portion of the consignment was immediately processed and the remainder was split into two equal amounts, one of which was held at
