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The Worst Things We've Found Inside Garbage Disposals

Garbage disposals are one of the most convenient features in any kitchen, but they're often misunderstood. Many homeowners assume they can handle anything that fits…

May 05, 2026
The Worst Things We've Found Inside Garbage Disposals

Garbage disposals are one of the most convenient features in any kitchen, but they’re often misunderstood. Many homeowners assume they can handle anything that fits down the drain. Unfortunately, that assumption can lead to serious damage and costly plumbing repair service calls. At Mr. Rooter Plumbing, we’ve seen it all when it comes to garbage disposal repair, and some of the items we’ve found inside might surprise you.

Grease and Cooking Oil

One of the most common—and worst—things found inside garbage disposals is grease. While it may seem harmless when poured down the drain in liquid form, grease quickly cools and solidifies, coating the inside of pipes and the disposal unit itself.

Our Customers Reviews

Larry R.

Howell Township, NJ

It was a late Saturday night. We had a super stubborn clog in some old galvanized pipes. Mr. Rooter send out Phil. Phil was great! He found the problem pretty quick. With determination and professionalism he final got it cleared out. I would recommend Mr. Rooter and Phil to anyone! He even cleaned up. We are so happy we choose Mr. Rooter!

Rose Bernard

Red Bank, NJ

We had a plumbing emergency and found Mr. Rooter while frantically searching for a 24-hour plumber. We feel like we hit a gold mine. Not only did we get a timely response. Everyone at Mr. Rooter was friendly, professional, competent and went above and beyond. Our plumber, Phil, was extremely helpful and gave us tips we could use moving firwars. Not to mention, the cost was extremely reasonable.

Joseph Chis

Hillsborough, NJ

Had sewer water backup in toilet and tub. Received callback as promised and arrived early. The tech determined we needed the main line to be cleared. He quickly located the opening and had us cleared in minutes. Very happy with the service. I was not prepared for the fee but it was an emergency.

Christopher Cox

Little Silver Township

Plumber, Phil, came out on short notice on a Saturday night and fixed our issue quickly, professionally and courteously. I contacted a different, well known plumbing company right before Mr. Rooter. The receptionist was rude and they didn’t call me back to say they couldn’t make it until after Phil left! The Mr. Rooter receptionist was very nice and they called me back quickly. I’m glad they did.

Debbie Dimitrion

Colts Neck, NJ

I just wanted to say James did a great job at my house. Excellent service, professional and very nice. Thank you so much for helping me with my plumbing problem. Did wonderful job.

Rachel Turunen

Jackson Township

I was very happy that I went with Mr. Rooter’s. The service was very quick and up front. Jessie James was very helpful answering my questions and replacing my hot water heater. He was pleasurable to do business with. If another problem arises in my home, I will be using this company again.

William Holden

Brick Township, NJ

A thorough, professional, pleasant experience. I had a back-up in the 50 year-old pipes of my new home. I called Mr. Rooter to have them locate the blockage, snake the line, and then use their video snake to get a visual of the integrity of the pipes. I’m glad that I called and will use them again for future needs.

LarJ MarJ

Oakhurst, NJ

You get what you pay for. Edwin Robles of Central NJ educated me as a 1st time homebuyer on why and what he was repairing, prevention, PROMPT,(on a sunday at that!) clean, knowledgeable, super professional but DOWN TO EARTH and at a REASONABLE PRICE! Sewer pipes unclogged and main water line fixed. I was no longer crying once job was thoroughly executed. After all $#@* $tinks but somebody has to do it and I HIGHLY recommend him and this company for a job well done. THANK YOU VERY MUCH!!

Margie Rafferty-Criscione

Ocean Township

Absolutely lovely office staff! I always knew when the repair person was coming. Lorenzo our repair guy was awesome, I really don't think there is anything he can't do. He looks young, but don't let that fool you! So happy all the repairs are behind us. We really just did a one-stop shopping and decided to have everything we've put off fixed because it was such a tremendous experience!

The Worst Things We’ve Found Inside Garbage Disposals

Over time, this buildup leads to clogs, foul odors, and reduced efficiency. A professional plumber is often needed to remove hardened grease and restore proper function through expert garbage disposal repair.

Bones and Hard Food Scraps

Many people believe garbage disposals are designed to grind anything, including bones. While some disposals can handle small, soft bones, larger or harder ones can damage the blades and motor.

We’ve pulled out everything from chicken bones to steak bones jammed inside units. These items can dull the grinding components or completely block the system, requiring immediate plumbing repair service.

Fibrous Foods

Foods like celery, co husks, onion skins, and asparagus may seem harmless, but their fibrous texture can wrap around the disposal’s blades. This creates a tangled mess that prevents the unit from functioning properly.

These stringy materials are a frequent cause of garbage disposal repair calls and can lead to long-term wear if not addressed quickly.

Coffee Grounds

Coffee grounds are another surprising culprit. While they appear small and harmless, they tend to clump together when wet, forming thick sludge inside pipes.

This buildup can lead to stubbo clogs that require a professional plumber to clear. Over time, repeated disposal of coffee grounds can significantly strain your plumbing system.

Non-Food Items

Perhaps the most shocking discoveries are non-food items accidentally—or sometimes intentionally—put into garbage disposals. We’ve encountered utensils, plastic packaging, bottle caps, and even small toys.

These objects can severely damage the disposal’s inteal components, often leading to complete system failure. In such cases, garbage disposal repair may not be enough, and replacement becomes necessary.

Eggshells and Starchy Foods

Eggshells are often debated, but they can contribute to problems when combined with other waste. The membrane inside the shell can stick to disposal components, while the crushed shells can accumulate in pipes.

Similarly, starchy foods like pasta, rice, and potatoes expand when exposed to water, creating thick, sticky masses that clog drains and require professional plumbing repair service.

Why Proper Use Matters

Your garbage disposal is designed to handle small amounts of soft food waste, not act as a catch-all for kitchen scraps. Misuse can lead to frequent breakdowns, unpleasant odors, and expensive repairs.

A qualified plumber can not only perform garbage disposal repair but also provide guidance on proper usage to help extend the life of your system.

Tips to Avoid Costly Repairs

To keep your disposal running smoothly:

  • Avoid pouring grease or oil down the drain
  • Keep fibrous and starchy foods out of the unit
  • Run cold water while using the disposal
  • Only grind small food scraps
  • Schedule regular maintenance with a plumbing repair service

By following these simple steps, you can reduce the risk of damage and keep your kitchen functioning efficiently.

Treat Your Garbage Disposal the Right Way

The items we’ve found inside garbage disposals highlight just how easily these systems can be misused. What seems like a quick and easy solution can quickly tu into a costly problem. By understanding what not to put down your disposal and relying on a professional plumber when issues arise, you can avoid unnecessary repairs and keep your system in top shape.

When in doubt, trust Mr. Rooter Plumbing for expert garbage disposal repair and dependable plumbing repair service you can count on.

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