A garbage disposal is a kitchen appliance installed under a sink that helps manage food waste. It grinds up leftover food into small pieces, allowing it to be washed away through the plumbing system. This appliance makes cleaning up after meals easier and reduces the amount of waste sent to landfills. Typically powered by electricity, garbage disposals are activated by a switch and can handle various types of food scraps, such as vegetable peels and small bones. However, they should not be used for fibrous materials, grease, or non-food items, as these can cause clogs or damage to the unit.