What are the different grades of aluminum foils?

Aluminum foils come in different grades, each with specific thickness and applications. Grade 1 is the thinnest, used for baking and food wrapping. Grade 2 is thicker, suitable for heavier-duty cooking and insulation. Grade 3 is the thickest and most durable, often used for industrial purposes. Grades 4 and 5 are specialized, with Grade 4 used for decorative purposes and Grade 5 for extreme temperature applications. Each grade has unique properties that determine its use in various industries and household tasks.