Have you heard? The world’s sewers are headed straight for an aneurysm of hair and congealed fat. Caused by solidified cooking oils that pick up debris and expand, becoming enormous obstructions in the sewer system, these early clogs may be museum-worthy, but they’re also destructive (and dangerous to the workers who try to remove them). So how can we help prevent Fatbergs? By learning how to dispose of cooking fats—from vegetable oil to animal grease—properly.