Shelf-stable vanilla sweetened almond milk typically lasts about 7 to 10 days after opening if you refrigerate it right away and keep it tightly closed.

What to watch for

  • Toss it sooner if it smells sour, looks clumpy, or tastes off.
  • Keep it in the fridge at 40°F or below after opening.
  • Don’t leave it out for long; once opened, treat it like any other milk-style beverage.

Practical rule

If you opened it a week ago, it’s probably still okay if it has stayed cold and smells normal; by two weeks, it’s usually at the end of its safe window.

TL;DR: Refrigerated after opening, shelf-stable almond milk is usually good for about a week to 10 days.