You Should Never Cook Salty Foods In Aluminum Foil. Here's Why - Tasting Table
Briefly

Aluminum foil is widely used in kitchens but poses potential health risks when used with salty or acidic foods due to chemical reactions that can cause aluminum to leach into food. Cooking at high temperatures or for prolonged periods increases this risk. Although using aluminum foil is generally safe, it's advisable to minimize unnecessary exposure. Alternatives such as parchment paper avoid these risks and can be utilized for similar tasks in the kitchen. Hence, shifting away from aluminum foil for specific food types can aid in maintaining health over time.
Foods high in salt cause a chemical reaction in aluminum foil that can lead to unwanted aluminum leaching into your food, which is a health risk.
The risk of aluminum leaching increases when cooking at high temperatures above 425 degrees Fahrenheit or for extended cooking times.
Though aluminum foil is convenient, it's reactive with certain foods, particularly salty and acidic items, which may lead to potential aluminum toxicity.
Alternatives to aluminum foil, such as parchment paper, provide safe cooking solutions without risking aluminum exposure in your diet.
Read at Tasting Table
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