How Long Food Lasts

Seafood / Shellfish

How long do oysters last?

Quick answer

Oysters (live oysters) keep 1-2 days in the fridge.

Form

Fridge

From purchase

1-2days

Freezer

Do not freeze

-

Pantry

No known time

-

Mine has been in the fridge for

How long do oysters last in the fridge?

  • Live oysters1-2 daysFrom purchase

Your fridge should be set between 0 and 5°C.

Refrigerators should be set to maintain a temperature of 40 °F or below.

How long do oysters last in the freezer?

  • Shucked oysters3-4 months

Freezer times are for quality; frozen food stays safe.

Your freezer should be around -18°C

A freezer acts as a pause button - food in a freezer won’t go bad and most bacteria cannot grow in it.

Food stored constantly at 0 °F will always be safe. Only the quality suffers with lengthy freezer storage.

Can you freeze oysters?

  • Shucked oystersYes
  • Live oystersNot recommended
  • Fresh oystersNot recommended

How to defrost oysters safely

  1. In the fridge
  2. In cold water, cook it straight after defrosting
  3. In the microwave, cook it straight after defrosting
  4. Cook it from frozen

You should defrost your food in the fridge so that it doesn’t get too warm

It’s also important to use food within 24 hours after it’s been fully defrosted

There are three safe ways to thaw food: in the refrigerator, in cold water, or in the microwave.

Check the water frequently to be sure it stays cold. Change the water every 30 minutes. After thawing, cook immediately.

It is safe to cook foods from the frozen state. The cooking will take approximately 50% longer than the recommended time for fully thawed or fresh meat and poultry.

Can oysters be kept out of the fridge?

Official sources give no room-temperature (cupboard) storage time for oysters.

All forms at a glance

FormFridgeFreezerPantry
Shucked oysters-3-4 months-
Live oysters1-2 days--
Fresh oysters---

What the official sources say

“Shucked Clams, Mussels, Oysters, and Scallops 3 - 10 Days 3 - 4 Months”

“Oysters, clams, mussels, live 1-2 days 2-3 months”

Frequently asked questions

How long do oysters last in the fridge?

Live oysters: 1-2 days.

How long do oysters last in the freezer?

Shucked oysters: 3-4 months. Freezer times are for quality; frozen food stays safe.

Can oysters be kept out of the fridge?

Official sources give no room-temperature (cupboard) storage time for oysters.

Good to know

Other figures given by the sources for close variants:

  • Shucked clams, mussels, and oysters Fridge 3-10 days Freezer 3-4 months
  • Shellfish, Shucked Clams, Mussels, Oysters, and Scallops Fridge 3-10 days Freezer 3-4 months
  • Live clams, mussels, crab, and oysters Fridge 1-2 days Freezer 2-3 months
  • Shellfish, Live Clams, Mussels, Oysters, and Scallops Fridge 5-10 days
  • Fresh clams, mussels, oysters Fridge 5-10 days

Related foods

Sources

We always show the most cautious time among official sources. Last checked: 1 October 2026.

Values we do not display (5)

Values below were set aside: unconfirmed by a second independent source, or contradicted by a shorter time.

  • Fresh oysters, fridge: 5-10 days (fsis.usda.gov, not confirmed by a second source)
  • Live oysters, fridge: 5-10 days (foodsafety.gov, not confirmed by a second source)
  • Live oysters, fridge: 7-10 days (hgic.clemson.edu, not confirmed by a second source)
  • Shucked oysters, fridge: 3-10 days (fsis.usda.gov, not confirmed by a second source)
  • Shucked oysters, fridge: 3-10 days (foodsafety.gov, not confirmed by a second source)