category-guide
Seafood: opened shelf-life guide
Seafood items tend to move quickly once opened. Use this guide to plan fridge use, compare examples, and click into the exact food page when you need a tighter answer.
Why this page exists
Seafood opened-food guide covering 22 editorially checked items, with UK and US storage windows, spoilage signs, and freezing advice.
UK examples in this group average around 4 days after opening.
US examples in this group average around 4 days after opening.
Cold storage, clean utensils, and re-sealing matter more than vague memory-based fridge guesses.
Trust and method
Review status
Generated from editorially checked item pages
How this page was built
Built from UK FSA guidance, US FDA/USDA guidance, pack wording patterns, and manufacturer expectations where labels are stricter.
Built to help compare Seafood before jumping into exact item pages.
Closest tracked examples on this page: Shrimp and Scallops, Lean Fish (cod, flounder), Lean Fish (pollock, ocean perch).
Related exact food pages
Seafood
Shrimp and Scallops
Shrimp and Scallops has a reviewed planning window of 1 day in UK mode and 1 day in US mode after opening or preparation.
UK 1d | US 1d
Seafood
Lean Fish (cod, flounder)
Lean Fish (cod, flounder) keeps for about 1 day in UK mode and 1 day in US mode once opened or chilled, based on the USDA FoodKeeper record for lean fish. Check the spoilage signs before eating.
UK 1d | US 1d
Seafood
Lean Fish (pollock, ocean perch)
Lean Fish (pollock, ocean perch) keeps for about 1 day in UK mode and 1 day in US mode once opened or chilled, based on the USDA FoodKeeper record for lean fish. Check the spoilage signs before eating.
UK 1d | US 1d
Seafood
Fatty Fish (bluefish, catfish)
Fatty Fish (bluefish, catfish) keeps for about 1 day in UK mode and 1 day in US mode once opened or chilled, based on the USDA FoodKeeper record for fatty fish. Check the spoilage signs before eating.
UK 1d | US 1d
Seafood
Caviar (fresh, in jar)
Caviar (fresh, in jar) keeps for about 2 days in UK mode and 2 days in US mode once opened or chilled, based on the USDA FoodKeeper record for caviar. Check the spoilage signs before eating.
UK 2d | US 2d
Seafood
Scallops
Scallops keeps for about 1 day in UK mode and 1 day in US mode once opened or chilled, based on the USDA FoodKeeper record for scallops. Check the spoilage signs before eating.
UK 1d | US 1d
Seafood
Shrimp, Crayfish
Shrimp, Crayfish keeps for about 1 day in UK mode and 1 day in US mode once opened or chilled, based on the USDA FoodKeeper record for shrimp, crayfish. Check the spoilage signs before eating.
UK 1d | US 1d
Seafood
Squid
Squid keeps for about 1 day in UK mode and 1 day in US mode once opened or chilled, based on the USDA FoodKeeper record for squid. Check the spoilage signs before eating.
UK 1d | US 1d
Seafood
Shucked Clams, Mussels, And Oysters
Shucked Clams, Mussels, And Oysters keeps for about 2 days in UK mode and 3 days in US mode once opened or chilled, based on the USDA FoodKeeper record for shucked clams, mussels, and oysters. Check the spoilage signs before eating.
UK 2d | US 3d
Seafood
Crab Meat (fresh)
Crab Meat (fresh) keeps for about 1 day in UK mode and 1 day in US mode once opened or chilled, based on the USDA FoodKeeper record for crab meat. Check the spoilage signs before eating.
UK 1d | US 1d
Seafood
Crab Meat (pasteurized)
Crab Meat (pasteurized) keeps for about 3 days in UK mode and 3 days in US mode once opened or chilled, based on the USDA FoodKeeper record for crab meat. Check the spoilage signs before eating.
UK 3d | US 3d
Seafood
Crab Legs (king, dungeness)
Crab Legs (king, dungeness) keeps for about 2 days in UK mode and 2 days in US mode once opened or chilled, based on the USDA FoodKeeper record for crab legs. Check the spoilage signs before eating.
UK 2d | US 2d
Seafood
Live Clams, Mussels, Crab, And Oysters
Live Clams, Mussels, Crab, And Oysters keeps for about 1 day in UK mode and 1 day in US mode once opened or chilled, based on the USDA FoodKeeper record for live clams, mussels, crab, and oysters. Check the spoilage signs before eating.
UK 1d | US 1d
Seafood
Fresh Whole Lobster (live)
Fresh Whole Lobster (live) keeps for about 1 day in UK mode and 1 day in US mode once opened or chilled, based on the USDA FoodKeeper record for fresh whole lobster. Check the spoilage signs before eating.
UK 1d | US 1d
Seafood
Fresh Lobster Tails (cooked)
Fresh Lobster Tails (cooked) keeps for about 2 days in UK mode and 2 days in US mode once opened or chilled, based on the USDA FoodKeeper record for fresh lobster tails. Check the spoilage signs before eating.
UK 2d | US 2d
Seafood
Fresh Clams, Mussels, Oysters
Fresh Clams, Mussels, Oysters keeps for about 2 days in UK mode and 5 days in US mode once opened or chilled, based on the USDA FoodKeeper record for fresh clams, mussels, oysters. Check the spoilage signs before eating.
UK 2d | US 5d
Seafood
Fresh Whole Lobster (frozen)
Fresh Whole Lobster (frozen) keeps for about 1 day in UK mode and 1 day in US mode once opened or chilled, based on the USDA FoodKeeper record for fresh whole lobster. Check the spoilage signs before eating.
UK 1d | US 1d
Seafood
Cooked Shellfish (all)
Cooked Shellfish (all) keeps for about 2 days in UK mode and 3 days in US mode once opened or chilled, based on the USDA FoodKeeper record for cooked shellfish. Check the spoilage signs before eating.
UK 2d | US 3d
Seafood
Fish (hot smoked, air pack)
Fish (hot smoked, air pack) keeps for about 14 days in UK mode and 14 days in US mode once opened or chilled, based on the USDA FoodKeeper record for fish. Check the spoilage signs before eating.
UK 14d | US 14d
Seafood
Fish (hot smoked, vacuum pack)
Fish (hot smoked, vacuum pack) keeps for about 14 days in UK mode and 14 days in US mode once opened or chilled, based on the USDA FoodKeeper record for fish. Check the spoilage signs before eating.
UK 14d | US 14d
Seafood
Fish (cold smoked, air pack)
Fish (cold smoked, air pack) keeps for about 14 days in UK mode and 14 days in US mode once opened or chilled, based on the USDA FoodKeeper record for fish. Check the spoilage signs before eating.
UK 14d | US 14d
Seafood
Fish (cold smoked, vacuum pack)
Fish (cold smoked, vacuum pack) keeps for about 21 days in UK mode and 21 days in US mode once opened or chilled, based on the USDA FoodKeeper record for fish. Check the spoilage signs before eating.
UK 21d | US 21d
Keyword target
how long does opened seafood last
Use this guide when
- You know the general food group but not the exact product yet.
- You want a planning shortcut before clicking into a specific item page.
- You need a shareable landing page for social posts and outreach.
FAQ
How should I use this Seafood guide?
Start with the broad planning advice here, then click into a specific food page for an exact after-opening window.
Are all seafood foods the same after opening?
No. For example, Shrimp and Scallops has its own storage window and spoilage signs, so always check the exact item page when possible.
What matters most after opening?
Keep the item cold, use clean utensils, reseal it fast, and watch real spoilage signs before eating.