The maximum temperature that aluminum foil can withstand depends on its thickness and specific alloy composition. Standard household aluminum foil is typically made from alloys containing mostly aluminum, and it can handle temperatures up to about 400°F (204°C) before it starts to melt. However, this temperature can vary based on the exact composition and manufacturing process.
If you are using aluminum foil in cooking or baking, it is generally safe to use it at temperatures below 400°F. Still, it's essential to follow the manufacturer's guidelines and avoid direct contact with open flames or heating elements.
For higher-temperature applications or industrial use, there are specialized high-temperature aluminum foils available that can handle much higher temperatures. If you have a specific application in mind, it's best to check the manufacturer's specifications or contact the supplier to ensure you are using the appropriate type of aluminum foil for your needs.