🍌 Produce

How to Tell If Bananas Are Bad

Quick answer

Bananas are bad when they leak liquid, have fuzzy mold, smell fermented or alcoholic, or are mushy and black all the way through. Brown spots and a soft texture alone mean they’re overripe, not spoiled.

Signs Bananas have gone bad

  1. Mold on the peel or at the stem. White, gray, or green fuzz, especially around the crown, means mold. Throw the banana out, since mold can spread into the fruit.
  2. Leaking or oozing liquid. A peel that’s wet, sticky, or leaking sugary liquid indicates the fruit inside has broken down. Toss it.
  3. Fermented, sour, or alcohol smell. Overripe bananas smell sweet. A sharp, boozy, or vinegar-like odor means fermentation has gone too far.
  4. Black, wet, slimy flesh. Peel it. If the fruit is gray-brown or black, watery, and slimy rather than just soft, discard it.
  5. Fruit flies swarming. A cloud of fruit flies means the banana is deep into decay. Inspect it and throw it out if it’s leaking or has soft, wet spots.
  6. Sour or bitter taste. Overripe should taste very sweet. A sour or bitter flavor means it’s not worth eating.

Looks weird, but it's fine

How long do Bananas last?

WhereHow longNote
Counter2–7 daysdepending on ripeness when bought
FridgeUp to 1 weekpeel will blacken; flesh stays good
Freezer2–3 monthspeeled and sliced or mashed

How to store them

Use it up before it turns

Frequently asked questions

Can you eat a banana with black spots?

Yes. Black spots mean it’s ripe and sweet. If the inside looks and smells normal, it’s fine to eat.

Is a fully black banana safe?

Often, yes, if the flesh inside is still cream colored, firm enough to hold together, and smells sweet. If it’s leaking, moldy, or smells fermented, toss it.

Why does my banana smell like alcohol?

That means the sugars are fermenting. It’s past eating quality, so throw it away.

More food freshness guides

General guidance based on USDA FoodKeeper. Storage times are estimates and conditions vary. When in doubt, throw it out.