Whether you're an occasional home cook or devote your waking hours to making gastronomic creations, you will likely agree that aluminum foil (aka tin foil) is one of the most versatile products in the kitchen. Whether you use it to line sheet trays, cover roasting meats, or shape it into a pouch to cook or reheat leftover foods in the oven, aluminum foil can do so many things. While the thin metal is used by 319 million Americans each year (according to one 2020 study), have you ever wondered why one side is shiny while the other is dull? Recently,...