Although popularly referred to as a nut, the edible part of the almond is botanically not a true nut, but the seed of a drupe (a botanic name for a type of fruit), which consists of an outer hull and a hard shell with the seed inside. Shelling almonds refers to removing the shell to reveal the seed. Almonds are commonly sold shelled, i.e. after the shells are removed, or unshelled, i.e. with the shells still attached. Blanched almonds are shelled almonds that have been treated with hot water to soften the seedcoat, which is then removed to reveal the white embryo.