Why is rapid and efficient cooling so essential? To preserve the high quality and unique food features that milk provides. Milk leaves the udder at approximately 35° C. The substantial heat in fresh udder warm milk must be removed quickly to a storage temperature of around 4°C to prevent or minimize the further growth of microorganisms. Properly cooled milk is the only way to retain optimal quality. Tristar Dairy Centre offers the largest range of on farm cooling equipment for cooling milk on the farm worldwide.