UHT Milk
Milk pasteurized at ultra-high temperature and packed aseptically, so it keeps unopened at room temperature for months. Once opened it is ordinary fresh milk.
| Category | Milk & Cream |
|---|---|
| Maker / Origin | United States |
| Storage | Store unopened cartons in a cool pantry away from heat. Refrigerate after opening, in the carton. |
| Shelf life | About 6 to 9 months unopened in the pantry. Once opened, refrigerate and use within about 7 days. |
| Best uses | Drinking, coffee, baking, travel and emergency stores, and single-serve lunchboxes. |
| Substitutes | Regular pasteurized milk in every use. |
| Pairings | Coffee, cereal, and travel provisions. |
| Last checked | October 18, 2026 |
About it
UHT milk is heated hotter than standard pasteurization (around 275°F for a few seconds) and sealed aseptically. The high heat slightly caramelizes the milk sugars, giving a cooked, mildly sweet flavor some drinkers notice at once.
Storing it
Chill UHT milk before drinking for the best flavor. It freezes like fresh milk once opened, up to 3 months, with some separation.
Using it
Use UHT milk exactly like fresh milk in cooking and baking. Note that its heated proteins make softer curds, so cheesemakers usually avoid it.
Swaps & pairings
Fresh milk swaps in one for one. UHT is the swap when refrigeration or shopping trips are limited, not a different recipe ingredient.
More from this maker: United States