UHT MilkShelf Life, Storage, and Spoilage Guide
Pantry
Several months (unopened)
Store unopened UHT milk in a cool, dark place. Once opened, it must be refrigerated.
Refrigerator
7-10 days (opened)
Refrigerate immediately after opening. Keep tightly sealed.
Freezer
Up to 3 months
While safe, freezing milk may cause changes in texture and separation. Thaw in the refrigerator.
Signs of Spoilage
- Sour or off odor
- Lumpy or curdled texture
- Yellowish discoloration
- Mold growth
Room Temperature Safety
The 'Danger Zone' for food is between 40°F (4°C) and 140°F (60°C), where bacteria can multiply rapidly.
Opened UHT milk should be returned to the refrigerator promptly after use to minimize time spent in the danger zone.
Safe Handling
Always refrigerate UHT milk immediately after opening.
Do not leave opened milk at room temperature for more than 2 hours (1 hour if above 90°F/32°C).
Keep milk in its original container to protect it from light and odors.
Do not drink directly from the carton to prevent contamination.