Store unopened canned food in a cool, dry, dark place like a pantry, and use older cans first to maintain quality.
For the full breakdown, see our best Canned Food guide.
Knowing how to store canned food properly keeps your pantry staples safe and edible for years. The key is location: a cool, dry, dark spot away from heat sources and moisture protects the can’s integrity and the food’s flavor. Get this simple part right, and your stockpile will serve you well.
Most commercially canned goods keep their best quality for 2 to 5 years for low-acid foods like vegetables and meats, and 12 to 18 months for high-acid foods like tomatoes and fruit. Home-canned items are best used within one year. The right storage habits can also reduce waste and save money.
Where Should You Keep Unopened Cans?
The pantry is your best option. Keep cans away from the stove, oven, sink, furnace, or uninsulated attic, where heat and temperature swings can degrade food quality. Avoid damp basements or garages, as moisture can rust cans over time. Utah State University’s food storage guidance emphasizes keeping cans off bare concrete floors and away from pipes, where condensation can form.
Avoid freezing sealed cans or jars. Freezing can damage the seals, cause cans to rust, or even make them burst or break. A dry, steady-temperature spot is the goal.
Practice FIFO rotation — first in, first out. Place new cans at the back of the shelf and bring older ones to the front. This ensures you use the oldest stock before it loses quality.
What About Opened Cans?
Once opened, transfer leftover food to a glass or plastic container with a lid and refrigerate it promptly. While the USDA notes that unused portions can be stored in the can itself, transferring to another container improves quality and reduces any metallic taste.
Different foods have different fridge timelines:
- Opened canned meats, fish, or seafood: about 2 days
- Opened canned fruit: about 1 week
- Opened tomato sauce or fruit products: about 5 to 7 days
When in doubt, follow the general rule: if it smells off, looks slimy, or has an unusual color, throw it out.
When Should You Discard A Can?
Inspect cans before opening. Discard any can that is bulging, leaking, heavily rusted, or badly dented — these can signal spoilage or botulism risk. A can that spurts liquid when opened should be discarded immediately, as this indicates gas buildup from bacteria.
Commercial cans can remain safe beyond the printed date if the can is intact. The date reflects peak quality, not necessarily safety. For home-canned goods, label each jar with the canning date so you know how old it is and can use it within the recommended one-year window.
FAQs
How long does canned food actually last?
Low-acid canned foods like beans, meat, and vegetables maintain best quality for 2 to 5 years. High-acid foods like tomatoes and fruit are best within 12 to 18 months. If the can is intact and stored properly, commercially canned food remains safe past these windows, though flavor and texture may decline.
Is it safe to store canned food in the fridge?
Storing unopened cans in the refrigerator is not necessary and can actually be counterproductive — the moisture can cause rust. Opened cans should have their contents transferred to a covered container and refrigerated. Unopened cans are best kept in a cool, dry pantry away from temperature extremes.
What does a bulging can mean?
A bulging can is a red flag for spoilage. The swelling often indicates gas produced by bacteria, possibly including Clostridium botulinum, which causes botulism. Do not open or taste the contents. Discard the can immediately without puncturing it.
References & Sources
- Utah State University Extension. “Storing Canned Goods.” Provides storage location, temperature, and rotation guidance for unopened and opened canned foods.