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Gunther Heller

Does Soda Go Bad?

Source: USDA FoodKeeper and FSIS · last verified November 2026

Illustration of soda
Show storage times for
Per USDA FoodKeeper
Counter
Refrigerate
once opened
Fridge
2–3 days
at or below 40°F (4°C)
Freezer
Not listed
no FoodKeeper figure
Counter
Not recommended
keep it cold
Fridge
Not listed
no FoodKeeper figure
Freezer
Not listed
no FoodKeeper figure
Quick answer

Yes. Soda lasts 2–3 days in the fridge. After that, or sooner if stored badly, it spoils: watch for the signs below.

How to tell if soda is bad

Smell

Vinegary, sour or musty instead of fresh.

Taste

Flat, sour or bitter — quality is gone.

Look

Cloudiness, sediment or film that was not there before.

Package

Bulging carton, cap or can — discard.

Soda past the expiration date

Unopened

Follow the package date. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.

Opened

Once opened, the printed date no longer applies. Count 2–3 days in the fridge from the day you open it.

How to keep soda fresh longer

  • Store unopened in a cool, dark place.
  • Refrigerate after opening and close tightly.
  • Keep away from light and heat, which flatten flavour.

More about soda

More “does it go bad?” answers, A–Z →

FAQ

How long does it take for soda to go bad?
2–3 days in the fridge, per USDA FoodKeeper.
Can soda expire?
Follow the package date. "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 soda?
Usually an unpleasant taste rather than illness, but discard anything mouldy, rancid or smelling off.
How do you keep soda from going bad?
Store unopened in a cool, dark place.
Numbers on this page come from USDA FoodKeeper and FSIS guidance. Last verified November 2026. How we verify our data · Report a wrong number