Is Tin or Plastic better?

How does Tin Foil, Aluminum Foil, Plastic Wrap and Paper Towels hold heat when wrapped food. Please Explain?

• I need to know Like when you wrap food when it's warm in Aluminum Foil Tin Foil, Plastic Wrap and Paper Towels, why does this happen and what makes the heat store much better? Please explain, and also show some sources of places where I can find a lot. I need a lot of information, please help.

• Answer:

  Metals are generally good conductors of heat. When you wrap hot food in a metallic wrap (tin, aluminum), it feels hot to your hand, which means that the heat from the food is coming out fast. Paper towels are a good heat insulator, and plastic is a fairly good insulator, so heat moves through them relatively slowly, which means the food stays hot longer.