Is it safe to put open tins in the fridge?

In this brief guide, we are going to answer the question “Is it safe to put open tins in the fridge?” We will also discuss the ideal way to store open tins.

Is it safe to put open tins in the fridge?

No, it is not safe to put open tins in the fridge. Open metal cans should not be kept in the refrigerator because iron and tin can leach into the food, tainting the flavor and, in rare cases, causing health problems. 

It’s especially risky to keep open cans in the refrigerator if the food is sour, such as citrus and tomatoes.

If you don’t entirely use the contents of an open can, you might be tempted to wrap it in plastic wrap and store it in the refrigerator. Doing so might be harmful because this carries serious health risks. However, contracting Salmonella or botulism is rare, but there is still a chance.

The dangers are less obvious. Bacteria don’t care if you keep leftovers in a container or in your mother’s favorite Tupperware. Leaching of plastic wastes and metal leaching into food are two potential health problems.

Acidic foods, such as tomato sauce, react with the metal surfaces edge of an open can, releasing tin, iron, aluminum, and other metals into the food. Don’t be concerned. “Can corrosion” takes many years inside an unopened can, and isn’t a serious risk though in an open can. 

If you’re concerned about metal leaching, make sure you’ve got a can with plastic rather than the old metal lid that the can opener removed. That lunch leftover soup should be good in the can, but pineapple should be stored in a fresh container.

Plastic leaching from an open can isn’t any worse than it is from an unopened one. In reality, the extra time in the refrigerator won’t cause any further issues. 

However, Bisphenol-A (BPA) in food packaging should be avoided. BPA is present in the plastic linings of cans, which are meant to protect you from metal leaching, which occurs mostly from the solder used to fuse the cans together. BPA mimics the steroid hormone estrogen in the body. 

The scientific community is divided on whether or not the chemical raises the risk of disease. The US Environmental Protection Agency has compiled a list of food packaging that includes the chemical.

What is the ideal way to store open tins?

Canned foods are simple to prepare, last a long time, and are versatile. However, they, like many other foods, are bound for landfills due to a lack of effective storage. Despite being perfectly edible, a lot of food is thrown away.

There are various strategies for extending the life of your opened canned foods so you can help the environment by reducing food waste. 

  • Store them in sealed containers. 
  • Store them at the backside of the fridge 

Saving food is all about reducing waste, conserving foodstuff, and making it last longer. Food waste has an environmental impact that causes climate change, and it wastes over $1 trillion each year economically.

Read here to know more about the methods to save open tins and the other healthy alternatives to store canned and tinned foods. 

Can you use sealed tins to store food instead of open tins?

Yes, you can use sealed tins to store foods. Canned goods can be kept for a long time if they’re properly sealed. Keeping these unsealed items chilled in their original box is a widespread fallacy, but the metal and tin from the cans can leach into the dish, giving it a bitter aftertaste. 

To avoid this problem, simply repack remains in an airtight container and keep them refrigerated to keep them fresh.

Why is low temperature safe to store open tins?

Food should be kept in airtight containers to prevent air from spoiling it in a variety of ways, but colder temperatures are also necessary. Putting your rewrapped canned goods in the fridge, where it’s coolest, will help extend the life of your canned products. 

This also protects them from temperature fluctuations caused by opening and closing the fridge door. 


In this brief guide, we answered the question “Is it safe to put open tins in the fridge?” We also discussed the ideal way to store open tins.

If you have any questions, you can ask in the comment section.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.