What side, shiny or matt, should be facing the food? this has puzzled me for years, nothing on the box to say which side, I put shiny side towards the food, but oh says shiny side out or it keeps the heat in? so if I have a turkey for Easter, which way round?
Makes no difference as the oven uses 'convection' type heat, now if you're lining the grill pan to do bacon ( or whatever) you should put it shiny side up as the grill uses 'radiation' type heat.
The answer to your question used to be on the Baco website but it seems to no longer be there. However I can remember the information anyway:
With ordinary foil it makes no difference whatsoever which way round you use it. With the 'non-stick' product you should put the matt side in contact with the food.
Can't believe that anybody would think it made any difference whichever way it was. And it's only shiny and matt because of the manufacturing process - not by design.