Can Charcoal really whiten teeth? Consider – Charcoal is used to remove color from many different products including water, fine cooking oils, fruit juices, and it transforms dark brown cane syrup into sparkling WHITE sugar. Unlike harsh chemicals, Charcoal naturally bleaches out stains from teeth, the same way Charcoal Soap and Charcoal Facials remove brown spots on the face. You can use it as a simple natural home treatment. It even removes disgusting chewing tobacco stains AND sweetens the breath!