Do:

• Do run cold water while grinding waste
• Do grind beef bones, chicken bones, peach pits
• Do grind lemon or orange peels to eliminate odors
• Do let water and disposer run for several seconds after grinding is complete
• Do grind ice to clean the blades and impeller

Don't:

• Don't reach into the disposer with your hand, use tongs and only when the unit is unplugged
• Don't grind fibrous foods like corn husks, artichokes, banana peels or celery
• Don't operate the disposer without running water
• Don't use hot water for grinding, it melts fats which later may clog the drain
• Don't grind coffee grounds. They aren't a problem for the disposer but they build in the pipes.