The present disclosure is directed to a system and method for disinfecting medical waste. The method includes shredding the medical waste via a shredder until the medical waste has a predetermined particle size. Further steps include spreading the medical waste onto a heating conveyor and conveying the shredded medical waste through a heating chamber via a heating conveyor. Thus, within the heating chamber, the shredded medical waste is heated via one or more infrared heating elements and at least one additional heating source, e.g. induction heating, such that the medical waste is heated from a plurality of directions. The resulting treated medical waste is biologically inert and clean and can be disposed of in standard commercial garbage or roll-off bins, which are typically located at medical facilities.