When you unroll the aluminum foil from the roll, you’ll find the shiny side, which is the side that has been pressed by the rollers, while the matte side is a result of
Why Is Aluminum Foil Shiny on One side?Does The Shiny Side of Aluminum Foil Reflect More Heat?Should You Use Aluminum Foil with The Shiny Side Up Or Down?在southernliving上Tamara GaneScience ABC
The side that was in contact with another layer becomes the “dull” side, while the side that was milled without being in contact with the other layer is the “shiny”
If there’s no trick to it, then why, exactly, does aluminum foil have a shiny and a dull side in the first place? Experts at Reynold’s Kitchen say that the difference between the two sides...
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