Due to the potential hazards and health risks, grease traps must always be cleaned and maintained by a licensed and professional company that specializes in grease interceptor cleaning and http://stroitelstvo.comlu.com grease disposal. The waste retrieved from interceptors and grease traps is known as brown grease, which is fats, grease, oils and rotted foods solids. The brown grease is pumped out of the interceptors and grease traps by a grease pumping truck.