Many people wrap hot, acidic food in aluminum foil, but a study found that cooking with foil leaches aluminum into the meal, especially with tomatoes, vinegar, and spices

Studies reveal aluminum foil can release metal into foods during cooking. Acidic ingredients like vinegar and spices significantly increase this aluminum transfer. High oven temperatures further damage the foil, accelerating metal leaching into meals. Adults can safely consume a weekly limit of aluminum from all sources. This kitchen staple is fine for non-acidic foods and simple storage needs.