Why does aluminum foil have one shiny side and one with a matte finish?

> Yet many people persist in calling aluminum foil "tinfoil."

> We chemists get annoyed at things like that.

> Now, about aluminum foil.

Actually, most chemists are profoundly annoyed at the Americans' inability to spell aluminium properly...

I always heard the shiny side reflected heat better. So that side should face food you are trying to heat up in the oven.

Any truth to that I wonder?

Shiny side is for wrapping the end of banana, the matte for the other end.

“The final rolling is therefore done on a sandwich of two sheets, face to face.”

so if you skipped the final rolling it would be shiny on both sides?

is this being produced?

Which side is better at reflecting woke beams from space?

aluminium :D