Why does frozen food taste different to fresh?

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Why does frozen food taste different to fresh?

In: Chemistry

When water freezes it takes more space than when it’s liquid.

Most food is composed of living cells. These cells are filled mainly with water.

When the food is frozen, some cells are damaged because they are stretched out due to the water inside them freezing.

This causes the food to be a little different and can sometimes change slightly the taste of certain foods.

Also factory processed foods, even when not frozen are going to taste different than local foods. Mostly due to needs to excessively sanitize the food you lose some of the nutrients in the process.