A foil wrap is one way that hair dressers are able to color hair. The hair is separated into small thin segments and the color is brushed on. Then the segment is wrapped in foil. I don't know exactly why, but this has been done to my hair. I think this technique is used if more than one color is needed, for instance, when streaks or highlights are wanted.
Between Saran Wrap and foil, I would choose foil. But the best thing to use are freezer bags.
Plastic wrap. Foil makes it hot.
saran wrap is better
It's commonly called "tin foil" (originally it was made of tin) but it is actually aluminium foil, rolled to a thickness of (typically) less than 0.02 mm.
Aluminium foil or plastic wrap insulate the heat of the wrapped up material.
aluminum foil
Fencing uses a foil (sword).
Aluminum foil is better at keeping things colder compared to plastic wrap. This is because aluminum is a better insulator and can reflect heat more effectively than plastic wrap.
aluminum foil
Simple glad-wrap or aluminum foil should do the job :)
only when baking
You wrap food in foil and seal all the edges before cooking it.