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Gunther Heller

Do Green Onions Go Bad?

Source: USDA FoodKeeper and FSIS · last verified November 2026

Illustration of green onions
Green onions Per USDA FoodKeeper
Counter
1 month
cool, dry place
Fridge
1 week
at or below 40°F (4°C)
Freezer
10–12 months
at 0°F; quality, not safety
Quick answer

Yes. Green onions last 1 month in the pantry and 10–12 months in the freezer. After that, or sooner if stored badly, they spoil: watch for the signs below.

How to tell if green onions are bad

Smell

Fermented, sour or musty odour.

Texture

Soft, mushy or leaking spots, or wrinkled skin with soft flesh.

Colour

Dark bruising that spreads, or browning inside.

Mould

White, grey or green fuzz — discard soft produce; cut firm produce generously.

Green onions past the expiration date

Best-by and sell-by

FoodKeeper gives unopened green onions 1 month in the pantry or 1 week in the fridge, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.

Past the date

Green onions past their best-by date are usually safe if stored well; check smell, look and taste before using.

How to keep green onions fresh longer

  • Store unwashed; wash just before eating.
  • Keep ethylene producers (apples, bananas, avocados) away from produce that over-ripens.
  • Refrigerate once cut, in a covered container.

More about green onions

More “does it go bad?” answers, A–Z →

FAQ

How long does it take for green onions to go bad?
1 month in the pantry, per USDA FoodKeeper.
Can green onions expire?
FoodKeeper gives unopened green onions 1 month in the pantry or 1 week in the fridge, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
What happens if you eat bad green onions?
Usually an unpleasant taste rather than illness, but discard anything mouldy, rancid or smelling off.
How do you keep green onions from going bad?
Store unwashed; wash just before eating.
Numbers on this page come from USDA FoodKeeper and FSIS guidance. Last verified November 2026. How we verify our data · Report a wrong number