Does aluminum cookie sheets burn cookies?

Aluminum cookie sheets can burn cookies if they're not used properly. Here's why:

Aluminum is a good conductor of heat: This means it heats up quickly and evenly. While this is great for baking in general, it can also lead to hot spots on the sheet if it's not properly preheated.

Thin aluminum sheets can overheat easily: This can cause cookies to burn on the bottom, even if the top seems done.

Aluminum can react with acidic ingredients: This reaction can create a metallic taste in your cookies.

Here's how to avoid burning cookies on aluminum sheets:

* Preheat the oven and sheet together: This helps ensure even heat distribution and reduces the risk of hot spots.

* Use a baking mat or parchment paper: These create a barrier between the cookies and the sheet, preventing direct contact with the hot metal.

* Don't overcrowd the sheet: Give cookies enough space to bake evenly.

* Check cookies frequently: It's best to check them a couple of minutes before the recommended baking time to avoid burning.

Alternatives to Aluminum:

* Stainless Steel Sheets: These are more expensive but are less prone to burning.

* Silicone Baking Mats: These are non-stick and flexible, making them easy to clean.

Ultimately, whether or not aluminum cookie sheets burn your cookies depends on how you use them. By following the tips above, you can enjoy delicious cookies without any burning.