Batch feed waste disposers are less popular than a continuous unit, although they are still an effective way to dispose of unwanted food waste. While continuous feed models start up with the simple press of a switch, batch feed models require additional steps to work. Once the plug is fixed into place it triggers the motor and the grinding of the food within the chamber begins. The downside to a batch feed model is that you must place the waste inside the garbage disposal before turning it on. Therefore if you have a large volume of waste food to dispose of, it will need to be done in batches, rather than continuously, without having to turn the machine on and off.