Aluminium Foil Which Side Why Is Only 1 Side Of Aluminium Foil Shiny? Does It Make A Difference Which Side Is In Contact With The Food?

Why is only 1 side of aluminium foil shiny? Does it make a difference which side is in contact with the food? - aluminium foil which side

I had an argument with another employee to solve this issue there are about 20 years, it was written by the company. He replied:
On one side is promising, because it is the part that comes into contact with the rollers during the process.
Regardless of which side is used.