What Can You Put in a Garbage Disposal?

On this page (7 sections)

1. What can you put in a garbage disposal?
2. What should you keep out of a garbage disposal?
3. How should you run a garbage disposal?
4. Does a cleaner make food safe to grind?
5. What if a garbage disposal jams or stops working?
6. What can you put in a garbage disposal if you have a septic system?
7. Which simple rule helps prevent disposal problems?

Put small, soft food scraps in a garbage disposal with cold running water. Keep grease, fibrous peels, bones, shells, and other hard or stringy waste out, and follow your model's manual because disposal guidance varies.

Feed scraps gradually instead of packing the chamber. Run water before, during, and briefly after grinding, then switch the unit off before reaching near the drain.

What can you put in a garbage disposal?

Small amounts of soft, moist food scraps are usually the best fit. Examples include bits of cooked vegetables, soft fruit, and plate residue, as long as your disposal manual permits them.

Use cold water and feed scraps in small batches. A disposal reduces food waste into particles that pass through the drain, but it does not make every leftover safe for your plumbing.

Scrape large portions into the trash or compost first. If a food is tough, fibrous, oily, or likely to expand, keep it out.

Can you put fruit and vegetable scraps in a garbage disposal?

Soft scraps are generally easier to grind than tough or stringy ones. Small pieces of ripe fruit or cooked vegetables may be suitable, but peelings and stringy fibers can wrap around internal parts or collect in the drain.

Keep celery, corn husks, onion skins, artichoke leaves, and similar stringy scraps out. Cut large pieces into smaller portions only when your manual allows that food.

A stronger motor does not make every food safe for the drain. The Badger 5XP is described with a 3/4 HP Dura-Drive motor and stainless steel grind components, but check its instructions before feeding a questionable scrap.

What should you keep out of a garbage disposal?

Keep grease, large bones, shells, fibrous scraps, and nonfood waste out. These materials can coat or obstruct plumbing, jam the disposal, or damage parts.

Avoid pouring cooking oil, bacon grease, or fat into the sink. Even if warm grease flows at first, it can cool and stick to pipes farther down the drain.

Do not grind glass, metal, plastic, paper, or cleaning products. A disposal is for food scraps, not a way to clear household waste.

Can you put bones, shells, or eggshells in it?

Keep large bones and hard shells out unless the manual clearly says otherwise. Hard material can stall or damage a disposal, and small shell fragments may settle with other debris.

Eggshells do not sharpen disposal blades. Most residential disposals use impellers that push food against a grind surface, so shells are not a sharpening tool.

A product designed for grinding tougher scraps still has limits. The InSinkErator Evolution 3/4 HP has a 3-stage MultiGrind system, but its instructions should guide what you feed into it.

Are coffee grounds, rice, and pasta safe?

Keep large amounts of coffee grounds, rice, and pasta out of the disposal. Grounds can collect in plumbing, while rice and pasta may swell or form a sticky clump.

A few scraps may pass through, but repeated buildup can contribute to a slow drain. Put most of these leftovers in the trash or compost instead.

If the sink drains slowly after grinding, stop using the disposal until you identify the cause. Our guide to how to unclog a garbage disposal drain covers safe next steps.

How should you run a garbage disposal?

Run cold water before turning on the disposal, feed scraps slowly, and keep the water running briefly after grinding. Follow the unit's instructions for any model-specific steps.

Use the splash guard to reduce upward splashes, and keep hands and utensils away from the drain. Turn the unit off before removing a visible object, and disconnect power before any work that reaches inside the chamber.

This 2-pack is made for Evolution series disposals with a 3 3/8 in opening and QCB-AM compatibility. It is not compatible with the Badger series, so check your model before choosing a replacement guard.

Don't put your hand beneath a splash guard while the disposal is connected to power. If you need to remove an obstruction, see how to unjam a garbage disposal safely.

Does a cleaner make food safe to grind?

A cleaner can help with odor and residue, but it does not make unsuitable food safe to grind. Keep using careful food-scrap habits and follow the cleaner's directions.

Affresh says its disposal cleaner helps power away odor-causing bacteria, food debris, and grime. The brand also says it is EPA Safer Choice Certified and septic safe.

For ongoing odor, remove trapped scraps from around the drain opening only when the unit is off. Read why a garbage disposal smells for other possible causes.

What if a garbage disposal jams or stops working?

Turn the disposal off if it hums, stalls, or stops grinding, and don't keep feeding it food. A jam or electrical issue needs attention before you resume normal use.

Never put your hand into the chamber to check for a jam. Use the model's instructions for its reset button or jam-clearing method, and disconnect power before doing any work near internal parts.

If the disposal remains stuck, follow how to unjam a garbage disposal safely or check why a garbage disposal is not working. Stop and contact a qualified repair professional if you cannot clear the problem safely.

What can you put in a garbage disposal if you have a septic system?

Check both the disposal manual and septic system guidance before using a disposal with a septic tank. Some makers describe particular models as septic safe for properly maintained systems, but that does not mean every food scrap or usage pattern suits every tank.

Avoid sending large amounts of food waste down the drain. The disposal adds solids to the wastewater system, so use a trash or compost bin for bulk scraps.

For everyday use, choose small soft scraps, run cold water, and keep grease and stringy foods out. When in doubt, discard the scrap outside the sink.

Which simple rule helps prevent disposal problems?

Use the disposal for small, soft scraps only, with cold running water. Keep grease, bones, shells, fibrous foods, and large amounts of starchy leftovers out.

Choose a cleaner if odor-causing residue is the issue, and a compatible splash guard if yours needs replacement. If the disposal jams, leaks, or stops working, follow the model's instructions before using it again.

For a broader look at choosing a unit, read the garbage disposal buying guide. If food scraps leave the disposal but the sink still drains slowly, use the steps in how to unclog a garbage disposal drain.

Frequently asked questions

Can you put coffee grounds in a garbage disposal?

A small amount of coffee grounds may pass through, but they can settle and collect in drain plumbing, especially when combined with grease or other debris. Scrape most grounds into the trash or compost, and follow your disposal and plumbing guidance if you have recurring slow drains.

Can you put eggshells in a garbage disposal?

It's safer to keep eggshells out unless your disposal manual specifically allows them. Shell fragments can settle with other waste, and claims that shells sharpen disposal blades are misleading because disposals use impellers rather than exposed knives.

Can you put rice or pasta in a garbage disposal?

Avoid sending large amounts of rice or pasta down the disposal. These foods absorb water and can clump into a sticky mass in the drain, so scrape leftovers into the trash or compost and use the disposal only for small scraps your manual permits.

Should you use hot or cold water with a garbage disposal?

Use cold water while grinding food scraps and let it run briefly afterward, unless your manual says otherwise. Cold water can help keep fats from melting into the drain, while hot water can soften grease and let it coat downstream plumbing.