Lasagna Cells and Galvanic Corrosion: Why Your Foil Is Dissolving
2025-07-14
Have you ever noticed holes in your aluminum foil after baking lasagna or marinating meat in a metal pan? This isn't just a culinary mystery; it's galvanic corrosion. Acidic foods and salt create an electrolyte, forming a battery between the foil and the pan (often steel). This electrochemical reaction causes the aluminum foil to corrode, potentially introducing metal ions into your food. The article explains this phenomenon, recommending non-reactive cookware like glass or enamel, and safer foil usage techniques to prevent this reaction.