Every now and then, canned food is left over. It is better not to store the leftovers in the can.
Many tin cans are made of tinned steel, informed the Bavarian State Office for Health and Food Safety. To prevent the tin – a heavy metal – from transferring to the food, the inside of the can is coated. The layer can be damaged when opening the can or handling cutlery. In larger quantities, tin can be harmful to the kidneys. In some people, on the other hand, gastrointestinal complaints may occur.