【科普贴】Aluminum Foil该用哪面

跟很多同学一样常常2糊锡纸烤东西该用哪面，网上问过，不同的人给过不同的答案。

今天本胖认真了一把，去做Aluminum Foil的大厂Reynolds的官网查了，

答案是：没区别 （non-stick 的除外）

贴出来跟大家分享一下

Which side of Reynolds Wrap® Aluminum Foil should I use, the shiny or the dull side?

Actually, it makes no difference which side of the aluminum foil you use both sides do the same fine job of cooking, freezing and storing food. The difference in appearance between dull and shiny is due to the foil manufacturing process. In the final rolling step, two layers of foil are passed through the rolling mill at the same time. The side coming in contact with the mill's highly polished steel rollers becomes shiny. The other side, not coming in contact with the heavy rollers, comes out with a dull or matte finish.

The exception is when using Reynolds Wrap® Non-Stick Aluminum Foil. The non-stick coating is applied during manufacturing to the dull side of the foil. Always place the non-stick (dull) side toward the food.

http://www.reynoldskitchens.com/reynoldskitchens/en/product_info_page/heavy_duty_foil.asp