How to Store Opened Canned Food in Refrigerator

How to Store Opened Canned Food in Refrigerator

Canned food is a pantry staple, but once you open a can, the rules change. Leaving opened canned food in the original can is not recommended — here's what you need to know to store opened canned food safely in the refrigerator.

Why You Shouldn't Store Opened Cans in the Refrigerator

Once a can is opened, the metal can begin to transfer a metallic taste to the food, especially with acidic foods like tomatoes or fruit. More importantly, opened cans are no longer sealed, making the food vulnerable to bacteria and odor absorption from the fridge.

How Long Does Opened Canned Food Last in the Refrigerator?

• High-acid foods (tomatoes, fruit, citrus): 5 to 7 days
• Low-acid foods (beans, vegetables, meat, fish): 3 to 4 days
• Canned soups and broths: 3 to 4 days

Step-by-Step: How to Store Opened Canned Food

1. Transfer to an Airtight Container Immediately

As soon as you open a can and don't use all the contents, transfer the remaining food to an airtight container. This is the most important step for both safety and flavor preservation.

A set like the Rubbermaid 42-Piece Food Storage Containers with Lids gives you the right size for any amount of leftover canned food, from a few tablespoons of tomato paste to half a can of beans.

2. Cover With the Liquid

For canned vegetables, beans, or fish, keep the food submerged in its original liquid when transferring to a container. The liquid helps preserve texture and flavor.

3. Label With the Date

Mark the container with the date opened and the type of food. This helps you track freshness and avoid waste.

4. Store on the Middle or Upper Shelf

Place the container on the middle or upper shelf of the refrigerator where the temperature is most consistent — at or below 40°F (4°C).

Special Cases

Canned Tomatoes and Tomato Paste

These are highly acidic and react with metal quickly. Always transfer to a glass or plastic airtight container. Use within 5 to 7 days.

Canned Fish (Tuna, Salmon, Sardines)

Transfer to an airtight container and consume within 3 to 4 days. The smell can permeate the fridge if not properly sealed.

Canned Beans and Legumes

Store in their liquid in an airtight container. Use within 3 to 4 days. They can also be frozen for up to 2 months.

Canned Coconut Milk

Transfer to an airtight container and use within 4 to 5 days. Stir before using as it may separate.

Can You Freeze Leftover Canned Food?

Yes, most canned foods can be frozen after opening. Transfer to a freezer-safe airtight container, leaving some headspace for expansion. Most will keep for 1 to 2 months in the freezer.

Signs Opened Canned Food Has Gone Bad

• Off or sour smell
• Unusual color or texture
• Visible mold
• Slimy consistency

Quick Tips for Storing Opened Canned Food

• Never store opened food in the original can.
• Transfer to an airtight container immediately.
• Keep food submerged in its liquid when possible.
• Label with the date and type of food.
• Consume within 3–7 days depending on the food type.
• Freeze if you won't use it within the week.