Are you in the habit of storing open tin cans in the fridge? It might seem like a convenient way to keep leftovers fresh, but it could actually be doing more harm than good. Here’s why:
The metal causes a reaction
Tin cans are typically lined with a protective coating to prevent the metal from reacting with the contents. Once the can is opened, this protective barrier is compromised.
When acidic or salty foods come into contact with the metal, it can cause a chemical reaction known as ‘metal leaching’. This can lead to off-flavours in the food and, in some cases, the transfer of harmful substances like lead or other heavy metals into the food.
While the risk is generally low, prolonged storage of acidic foods in open tin cans can increase the likelihood of this reaction occurring.
A bad taste in your mouth
Open tin cans in the fridge can act like sponges, absorbing odours from other foods stored nearby.
This is particularly problematic for foods with strong smells, such as onions, garlic, or fish. Over time, these odors can permeate the contents of the can, altering its taste and aroma. Even if the can is tightly sealed with its lid, the porous nature of the metal can still allow odours to seep in. This can result in unpleasant flavour combinations and make the food less enjoyable to eat.
Additionally, if the can contains a liquid, such as soup or sauce, it can also absorb flavours from the fridge itself, further impacting its taste. No thanks!
Instead, store leftovers from your tinned goods in an airtight container.
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