Edible gold leaf sheets are made from pure gold and are safe to be consumed in small amounts. They are used to decorate and add a luxurious touch to food and drinks. Imitation gold leaf sheets, on the other hand, are made from other materials such as copper or zinc that are electroplated with a thin layer of gold. They are not meant to be consumed and are primarily used for decorative purposes.
It is important to note that gold leaf sheets, whether edible or imitation, are extremely thin and delicate, and should be handled with care. They are usually applied using a special tool called a gilder's tip, which helps to pick up and place the leaf onto the surface being decorated.
In summary, the main difference between edible gold leaf sheets and imitation gold leaf sheets is that the former is made from pure gold and is safe to be consumed, while the latter is made from other materials and is not meant to be eaten.