How Long Does Almond Milk (Opened) Last?
Opened carton of almond milk (or other plant-based milk).
The Short Answer
Almond Milk (Opened) lasts 7–10 days in the refrigerator when stored properly at 40°F or below. These times are based on USDA food safety guidelines and assume proper storage conditions.
Storage Times at a Glance
Source: USDA FoodKeeper | Last verified: March 19, 2026 | Our methodology
Shelf-stable almond milk lasts months unopened but only 7-10 days after opening. The lack of dairy does not make it immortal. Plant milks spoil on a similar timeline to cow's milk once opened.
How to Store Almond Milk (Opened)
Shake well before each use. Keep sealed tightly. Refrigerate after opening, even if the original carton was shelf-stable.
How to Tell if Almond Milk (Opened) Has Gone Bad
Look for these signs that almond milk (opened) has spoiled: thick, clumpy texture, sour smell, bloated carton, off taste, visible mold.
The Professor's rule: When in doubt, throw it out. No meal is worth food poisoning.
The Bottom Line
Properly stored almond milk (opened) stays safe for 7–10 days in the fridge. Always store in airtight containers, refrigerate within 2 hours of purchase or preparation, and trust your senses. If something looks, smells, or feels off, discard it regardless of how many days it has been.
Frequently Asked Questions
Yes. Opened almond milk lasts 7-10 days in the fridge regardless of the original package date. Treat it like dairy milk once opened.