Dairy
Processed Milk (shelf-stable until opened)

UHT MilkShelf Life, Storage, and Spoilage Guide

Sourced from
USDA FoodSafety.govFDA

Pantry

6-9 months (unopened)

Store unopened UHT milk in a cool, dark place. Once opened, it must be refrigerated.

Refrigerator

7 days (once opened)

Refrigerate promptly after opening. Keep tightly sealed.

Freezer

3 months

Freeze milk in airtight containers, leaving headspace for expansion. Thaw in the refrigerator.

Signs of Spoilage

  • Sour or off odor
  • Lumpy or curdled texture
  • Discoloration
  • Mold growth

Room Temperature Safety

Unopened UHT milk is shelf-stable. Once opened, the 2-hour rule applies (1 hour above 90°F/32°C).

40°F–140°F

Unopened UHT milk can be stored at room temperature. Once opened, it must be refrigerated and should not be left in the danger zone for more than 2 hours (or 1 hour if the temperature is above 90°F/32°C).

Expert Tips

Safe Handling

1

Always check the 'best by' or 'use by' date on the packaging.

2

Once opened, treat UHT milk like fresh milk and refrigerate promptly.

3

Do not refreeze thawed milk.

4

Discard milk if it has been left at room temperature (above 40°F) for more than 2 hours (or 1 hour if above 90°F).

Related Items

Comparisons

Regular Milk (unopened)
Pantry
Unsafe
Fridge
7 days
Freezer
3 months
Evaporated Milk (unopened)
Pantry
Several months to 1 year
Fridge
3-5 days (once opened)
Freezer
Not recommended