foil

This includes areas between the creases on a sheet of aluminum foil, the prongs of a fork, or a metal object and the microwave oven’s metal walls.

And I love that there's this fashion becoming this foil.

While exact details of the story are contested, it's rumored that the pill, however, froze to the freezer coils and broke, foiling the CIA’s plan and granting Castro many more days to satiate his sweet tooth.