There are certain food items that you should just never flush down your skin, as doing so may result in you spending more money than you bargained for in repairs.
If you’ve ever chopped vegetables, you know how the long strands can get caught on your hand, turning the whole situation into a sticky mess. Avoid transferring that mess into your disposal by disposing of the remnants in the trash.
The same goes for veggies like celery and rhubarb. Throw long, stringy stalks straight in the trash to keep the fibers from causing a problem, but don’t worry about small pieces. When chopped up, the fibers are small enough to not cause a problem.
Potato peels are thin enough to slip past the disposal, potentially catching in the drain. There they can cause the same issue as the egg membrane, holding up other waste and creating a clog.
Again, a few peel pieces are nothing to worry about, but if you use lots of potatoes, the stack of peels quickly adds up.
Chopped, diced, or in chunks, most onion waste shouldn’t be a problem for your disposal. The problem comes with the thin membrane that lies just below the dry, outer-most layer of an onion. That thin, wet layer is often removed before the onion is chopped, and thrown into the disposal.
The layer is so thin that it can pass through the disposal, missing the blades and wind up wedged in the drain, where it acts like a net on a pickup, catching more items and holding them in place.
You can avoid this problem by simply dropping the thinnest outer layer in the trash, or cut it up before dropping it in the disposal.
You may have heard that it’s a good idea to drop egg shells into the garbage disposal. The idea is that the shells somehow sharpen the blades mounted on the disposal wall.
While eggs don’t do much to help your disposal blades, at least the shells themselves don’t do any damage. However, the next time you crack an egg, take a close look at the shell. You’ll see a thin membrane on the inside of the shell that can get loose and lodge in the drain or around the impeller.