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The 5 Best Garbage Disposals (2021 Review)

Garbage disposals prevent clogs in kitchen sinks by grinding food into small pieces. In this review, the This Old House Reviews Team researched the five best garbage disposals on Amazon to help you find the product that’s right for you. The products included in this article are available at various retail stores, local home centers, and online retailers like Amazon.

Garbage Disposal Courtesy Moen

A garbage disposal is a key appliance in every kitchen. As food particles pass through it, they’re pulverized into smaller pieces to prevent pipe clogs. To help you select the disposal that’s right for you, the This Old House Reviews Team researched the best garbage disposals on Amazon. Here are our top five recommendations.

Best Heavy-Duty Disposal: InSinkErator Evolution Compact Garbage Disposer

This disposal is constructed with heavy-duty galvanized steel. It utilizes a 0.75-horsepower motor and multigrind technology to break down tough food scraps, including bones and melon rinds. This product is also equipped with a protective liner that keeps waste in, preventing leaks.

Key Features

  • Eight inches wide
  • 12.13 inches tall
  • 0.75-horsepower motor
  • Four-year warranty

What Customers Are Saying

With over 7,000 reviews, this garbage disposal has an overall rating of 4.8 stars out of 5 stars. Reviewers left 4- or 5-star reviews 97% of the time and 1- or 2-star reviews 2% of the time.

Those who left positive reviews for this product said that it had a slim design, strong motor, and long life. On the other hand, those who left negative reviews complained that it was difficult to mount under a sink and that it struggled with larger food particles.

Best For Shallow Sinks: InSinkErator Badger 5 Garbage Disposal

This garbage disposal, which is powered by a 0.5-horsepower motor, uses continuous-feed grinding to break down food scraps. This disposal has a compact design that’s just over six inches wide and 11 inches tall, making it an easy fit under any kitchen sink.

Key Features

  • 6.31 inches wide
  • 11.5 inches tall
  • 0.5-horsepower motor
  • Two-year warranty

What Customers Are Saying

Out of over 10,000 reviews, this garbage disposal has an overall rating of 4.7 stars out of 5 stars. Among Amazon reviewers, 95% rated this product 4 or 5 stars, while 3% rated it 1 or 2 stars.

Customers who were happy with this product said that it was easy to install, made of high quality materials, and long-lasting. However, dissatisfied customers said that it was prone to leaks.

Best Warranty: Moen GXS75C Host Series Garbage Disposal

For customers who need to grind tough materials, such as banana peels, small fruit pits, and cooked meats, this disposal may be the perfect selection. This product is powered by a 0.75-horsepower motor. It also comes with a 10-year warranty to ensure longevity.

Key Features

  • 7.5 inches wide
  • 13.375 inches tall
  • 0.75-horsepower motor
  • 10-year warranty

What Customers Are Saying

Nearly 1,600 reviewers gave this product an average rating of 4.7 stars out of 5 stars. Reviewers left 4- or 5-star ratings 93% of the time and 1- or 2-star ratings 3% of the time.

Happy customers said that the splash guard was easy to remove for cleaning and that the chamber and motor were able to handle a lot of food. Customers also liked that this product didn’t require a lot of tools for installation. However, some customers had to manually push food into the grinder. Other unhappy customers disliked that it was loud.

Best Value: Waste King L-1001 Garbage Disposal

This garbage disposal is an affordable way to prevent kitchen clogs. It has a 27.3-ounce grind chamber and a 0.5-horsepower motor to break down small food scraps with ease. The grind chamber is made from a corrosion-resistant polymer, ensuring maximum durability and performance.

Key Features

  • 5.25 inches wide
  • 12.75 inches tall
  • 0.5-horsepower motor
  • Two-year warranty

What Customers Are Saying

With nearly 10,000 reviews, this disposal has an average rating of 4.6 stars out of 5 stars. Reviewers left 4- or 5-star reviews 88% of the time and 1- or 2-star reviews 6% of the time.

Those who were happy with this disposal said that it was quiet, featured a powerful motor, and had a compact design. However, those who were unhappy said that its installation was difficult and its drain size was smaller than expected.

Best For Large Sinks: Waste King L-3200 Garbage Disposal

With a high-powered motor and twist-and-lock installation, this garbage disposal is easy for any homeowner to use. Though it’s wide and tall, limiting what sinks it can fit under, its powerful 0.75-horsepower motor helps it to grind large food particles.

Key Features

  • 7.75 inches wide
  • 13.75 inches tall
  • 0.75-horsepower motor
  • Eight-year warranty

What Customers Are Saying

This disposal has over 3,400 reviews on Amazon with an average rating of 4.5 stars out of 5 stars. Of those reviews, 89% are 4 or 5 stars, while 7% are 1 or 2 stars.

Those who were happy with this disposal liked its mounting system, low noise level, and easy-to-follow instructions. Dissatisfied customers didn’t like that the stopper was made from plastic instead of more durable steel.

Buyer’s Guide

Before buying a garbage disposal, it’s important to consider how its specifications impact its performance. Here are three factors to think about when purchasing a disposal.


A garbage disposal’s dimensions impact its compatibility with your kitchen sink. For example, larger models might not fit in the cabinet under your sink. While purchasing a compact garbage disposal removes the hassle of fitting the model under your sink, most compact garbage disposals sacrifice power for size.


A garbage disposal’s horsepower influences the type of food it’s able to grind. For example, a 0.25-horsepower disposal can tackle meat trimmings and other soft food, while a 0.75- or one-horsepower disposal can grind tougher particles, such as melon rinds.

Grinding Technology

Garbage disposals are split into two different types: continuous-feed and batch-feed models. Continuous-feed disposals run continuously once their power is turned on, making it easy for users to throw large amounts of food into their grind chambers. Most batch-feed garbage disposals run only when their drain covers are in place, limiting the amount of food that can be ground at once.

Frequently Asked Questions

How does a garbage disposal work?

Garbage disposals are mounted to the underside of your kitchen sink to catch solid food as it enters the drain. Once the food is in the disposal’s grinding chamber, users can turn on the device and grind the collected food into small particles. These particles easily pass through your plumbing pipes instead of causing clogs.

How long do garbage disposals last?

Most garbage disposals last around 10 years. If your model has difficulty grinding food, makes a louder-than-usual noise, or frequently clogs, it might be time for a replacement.

How do you use a garbage disposal?

Run cold water in your sink before turning the device on. Once the disposal is on, gradually drop food in the drain. When you’ve finished disposing of the food, turn off the device and run cool water for a few more seconds to flush your pipes.

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