Question: what is the difference between fresh and uht milk?
Answer: The difference between fresh and long-life milk is the method of processing. Fresh (pasteurised) milk is heated to 74°C for 15 seconds. ... You might also see long life milk referred to as "ultra heat treatment (UHT)" milk. Long life or UHT milk is available in forms like full-fat, reduced-fat, low-fat, modified and skim.