As far as I know, frozen berries are safe when eaten while still frozen, when cooked directly from frozen, or when carefully thawed and eaten quickly. When they are left at room temperature for too long bacteria growth makes them unsafe to eat.

If frozen berries are added when making overnight oats, and kept in the refrigerator, are they safe the next morning? Are they safe the following morning?

  • 1
    I’m not sure I understand your concern, or your recipe. At what point in the process are the berries at room temperature?
    – Sneftel
    Nov 20, 2023 at 6:42
  • 1
    They are never at room temperature. I probably have an irrational fear of thawing food!
    – Liam
    Nov 20, 2023 at 16:20

1 Answer 1


In your scenario the berries never go above fridge temperature so there are no safety concerns.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.