Items like grease, bones, fibrous foods, coffee grounds, eggshells, and starchy foods should not be put in a garbage disposal, as they can cause clogs, dull blades, and damage the unit.
Garbage disposals are designed to handle small food scraps, not heavy or fibrous waste. Putting the wrong items down the disposal can cause internal damage, drain blockages, or backups that affect sinks and dishwashers.
Many disposal problems Radiant sees in Central Texas homes are caused by long-term misuse rather than mechanical failure. Understanding what should—and shouldn’t—go into the disposal helps extend its lifespan and protect your plumbing system.
If your disposal is frequently clogging or backing up, a plumber can determine whether the issue is usage-related, mechanical, or tied to the drain line itself.