Aluminium Copper Stainless Steel A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Kitchen Foil, Cooking Foil, Foil, Tin Foil Cold rolled aluminium flat product less than 250 microns in thickness. Usage includes kitchen foil (cooking foil) and foil trays for food. Kitchen Foil is often incorrectly referred to as Tin Foil.