Why should foodstuffs with a acid components be not stored in metallic container?

Storing acidic foodstuffs in metallic containers is generally not recommended due to the potential occurrence of chemical reactions that can compromise the quality and safety of the food. Here are a few reasons why:

1. Corrosion and Contamination: Acidic foods can react with the metal surface of the container, leading to corrosion and the release of metal ions into the food. This corrosion can cause the food to develop an off-flavor, alter its color and texture, and potentially introduce harmful metals into the food product.

2. Metallic Taste: The interaction between acidic foods and metals can also result in the migration of metal ions into the food, which can impart a metallic or unpleasant taste to the food. This can significantly affect the organoleptic properties and consumer acceptance of the food product.

3. Color Changes: Acidic foods may cause discoloration or fading of the metallic container, which can affect the appearance and perceived freshness of the product.

4. Health Risks: The release of metal ions from the container into the food can pose potential health risks. Some metals, such as lead, copper, iron, and aluminum, can be toxic and harmful to human health when consumed in excessive amounts.

To ensure the safety and quality of acidic foodstuffs, it is advisable to store them in containers made from non-reactive materials such as glass, plastic approved for food contact, or stainless steel with appropriate coatings or linings to prevent direct contact between the acidic food and the metal surface.