Many households reuse foil sheets to cut down on waste, and that’s a reasonable habit, but only when the foil is clean and undamaged. Sheets that have touched raw meat, chicken, fish, or oily and burnt food residue should be thrown away rather than reused, since bacteria and stubborn odours can transfer onto whatever you wrap in it next. Before reusing any sheet, give it a quick check for tears, grease stains, or food particles. When in doubt, it’s safer and more hygienic to simply use a fresh piece.
