As their names would suggest, tin foil is made from tin and aluminium foil is made from aluminium. Whilst they look very similar in appearance and are both used for packaging and baking purposes, tin foil is actually less sturdy, stiffer and often leaves a metallic taste in your mouth. Therefore we would recommend using aluminium foil for your fudge as it is eco-friendly, has no distinguishing taste and is toxic free. Aluminium foil is often mistaken for tin foil due to the commonalities between the two.