Shiny or Dull?

Age old question - which side of foil should face the food when cooking, the shiny side or the dull side?

The answer?  It doesn't matter, either side is fine.  The "shiny" side is a result of the manufacturing process.  Yes, the shiny side does reflect heat slightly better than the dull side, but the difference is negligible.  The one time the side does matter?  When you're using non-stick foil - in that case, the dull side is non-stick.

Mmm...tasty!