What keeps UHT milk from going off?

Answer 1

UHT milk is transported more easily as no cold chain is needed. This also makes it easy to import from areas where there is a massive oversupply. It can also be stocked up and sold in times when there are milk shortages.

Answer 2

UHT milk keeps fresh for a long time because of the heat treatment that it went through.

All spoilage microorganisms are killed and the product is sealed in a light tight container to keep chemical changes from happening.

Answer 3

UHT milk has been sterilised by high heat (no microorganisms are alive to spoil the product) and packed in aseptic packaging (no microorganisms are allowed back into the product). These are the preservatives used with UHT milk. No chemical preservatives are added.

Answer 4

UHT = Ultra Heat Treatment. By a process called Pasteurization, the milk is heated to just below boiling point and quickly cooled again to remove the organisms/bacteria that might cause milk to spoil, thus increasing shelf life.

Answer 5

UHT milk has a longer shelf life because it destroys all spoilage bacteria.

UHT stands for Ultra-high temperature processing. Milk is heated to a temperature of about 280°F and held at that temperature for 2 seconds. This is much hotter than typical pasteurization, which heats milk to 161°F and holds it for 15 seconds.

Answer 6

UHT milk can have a slightly burnt taste.

A small amount of vitamins are lost during the processing, but this is not a large amount.