Keep hard materials out of the disposal
Large, hard materials make the shredder dull and less efficient while small hard objects can get stuck and jam the rotating parts. The units come with a list that specifies the objects that you should avoid.
The list also specifies the amount of hard objects that you can put in the disposal. If you suspect that a given object is harder than the disposal can handle, you should put the object in the trash can or put it in a worm composting bin.
Regardless of the garbage disposal that you have, you should keep the following items out of the units: hard bones, unpopped popcorn kernels, and hard shells from crabs, shrimp, and other shellfish.
Don’t put starch and fibrous items in the disposal
These items bring about stubborn drain blockages as the fibers get tangled and starches get thick. Some of the items that you should avoid putting in the disposal include: banana peels, celery, potato peeling, artichokes, coffee grounds, fruit pits, onion skins, egg shells, and corn cobs.
If you can’t avoid putting these items in the disposal, you should cut them into small pieces.
Run cold water while the disposal is on
After the waste matter has cleared the drain, you should keep the disposer and water running for up to 60 seconds. Cold water keeps the motor, shredder assembly, and bearings from overheating. The water also makes it easy for the waste to go down. This is because the water pushes the waste down.
You should not use hot water because hot water can melt fat and allow it to re-solidify and block the drain.