Bones: Bones are hard and can damage the blades of the garbage disposal or become lodged in the drain.
Fruit pits and seeds: Similar to bones, fruit pits and seeds are hard and can damage the blades or become stuck in the drain.
Grease and oil: Grease and oil can solidify and cause clogs in the drain.
Fibrous vegetables: Vegetables like celery, asparagus, and corn husks have stringy fibers that can become wrapped around the blades of the garbage disposal and cause clogs.
Pasta and rice: These foods can expand in the drain and cause clogs.
Eggshells: Eggshells can become ground up into small pieces, which can stick to other food waste and cause clogs in the drain.
Coffee grounds: Coffee grounds can also stick to other food waste and cause clogs in the drain.