Drink can dealers often purchase aluminium cans in bulk, even when deposits are not offered. Aluminium is one of the most cost-effective materials to recycle. When recycled without other metals being mixed in, the can–lid combination is perfect for producing new stock for the main part of the can—the loss of magnesium during melting is made up for by the high magnesium content of the lid. Also, reducing ores such as bauxite into aluminium requires large amounts of electricity, making recycling cheaper than producing new metal. Aluminium cans are coated internally to protect the aluminium from oxidizing. Despite this coating, trace amounts
Are You Metal? in doing this, and have to put their headphones back on. However, the third woman takes off her headphones, and when she hears the sound, she begins to headbang (It is then implied that the sound is the band's heavy metal music, or possibly just heavy metal music in general). She is able to reach the key and they are able to escape. For the second half of the video, scenes of the band playing in front of a crowd are featured, which includes snippets of Dr. Stein. Notes: Are You Metal? "Are You Metal?" is a song and a