How to Tell If Oat Milk Is Bad

Have no idea when you opened that carton of oat milk?

Here’s how to tell if it’s past its prime.

How Long Can Oat Milk Last in the Fridge?

an illustration of Oat Milk carton with a red X over it

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But thoselabels can read like a bit of a riddle.

Most should last from 7 to 10 days, but check the label to be sure.

Unopened, most shelf-stable oat milks should last for at least six months in your pantry or a cabinet.

Just avoid storing the oat milk in a place that gets very hot or cold, like your garage.

Once opened, shelf-stable oat milk is no longer shelf-stable and should be stored in the fridge.

James says a realistic estimate is three to five days in the fridge.

“I would not recommend consuming the product past its ‘use by’ date,” says James.

Don’t risk it, it’s not worth it."

“If you’re using the oat milk for cooking, this usually won’t be noticeable.

Just give the thawed oat milk a good shake or stir before using to deal with any separation.

One tip is to test-freeze a small amount, thaw it and see how you like the outcome.”

Transfer the oat milk to the fridge to thaw, and stir or shake it well before using.

Dispose of any oat milk that’s developed a sour odor, yellowish tinge or chunky texture.