How to Effectively Clean a Rusty Garbage Disposal


Your trusty garbage disposal is a kitchen staple, handling all sorts of food scraps on a daily basis. But what happens when you give it a thorough inspection and find that dreaded reddish-brown buildup—the telltale signs of rust? Well, the good news is that you don’t need to worry too much. With the right approach, you can restore your rusty garbage disposal to its former glory and keep the wheels (or in this case, the blades) running smoothly for years to come.

In this guide, we’ll go over how a little elbow grease and some everyday household items can ensure your garbage disposal is free from rust and ready to tackle the toughest food debris once again.

Understanding Rust in Garbage Disposals

Before diving into the cleaning process, it’s crucial to understand what causes rust to form in the first place. See, rust is typically a sign of oxidation, a chemical reaction that occurs when metal is repeatedly exposed to water or moisture over time. Since the average disposal’s internal components are mostly made of metal, this makes them susceptible to this reaction.

What Causes a Rusty Garbage Disposal?

Rust in garbage disposals often stems from several common sources:

  • Hard Water: If your household has hard water, which contains high levels of minerals like iron, it can accelerate the rusting process.
  • Food Scraps: Certain food waste, especially those containing acids or salt, can exacerbate rust. Foods like citrus peels and coffee grounds can be particularly problematic.
  • Inadequate Cleaning: A rusty disposal often goes hand in hand with one that hasn’t been cleaned properly. Regular cleaning can prevent rust from gaining a foothold.

Preparation for Cleaning a Rusty Garbage Disposal: What You Need to Know

Before you roll up your sleeves and tackle that rusty disposal, you’ll need to gather a few supplies. Don’t worry, this isn’t going to require an expensive trip to the store; these are easy to come by and may already be in your kitchen or bathroom:

  • Flashlight: To get a good look at the inside of your disposal.
  • Pliers: In case you need to remove objects that are stuck or altering the functionality of the disposal.
  • Lemon Juice: About a cup should do it.
  • Salt: You only need roughly 3 tablespoons here
  • Ice Cubes: If you have at least a few in your freezer, you should be good to go

Once you’re equipped with the right tools and supplies, you’re ready to reclaim your disposal from the clutches of rust.

How to Remove Rust From a Garbage Disposal, Step-by-Step

Cleaning a rusty garbage disposal isn’t rocket science, but it is a process that requires some precision and patience.

Step 1: Disconnecting the Power

The first step is to disconnect the power to the disposal before you begin cleaning. After all, there’s nothing friendly about a run-in with those sharp blades. You may even want to turn off the power from the circuit breaker to be extra cautious, as forgetting this step can have serious consequences.

Step 2: Removing Visible Debris

With the power safely off, take out your flashlight to see if there is any visible debris that could be hindering the rust removal process. You could find anything from large food particles to small metallic pieces to broken glass in your garbage disposal. If you do, use pliers or tongs to reach into the disposal and remove it.

Step 3: Applying a Rust Remover Solution

With the debris out of the way, it’s time to introduce the rust remover. Simply combine the lemon juice with the salt, and mix thoroughly. Then, pour the solution into your garbage disposal.

Step 4: Wait

This is where that patience comes into play. For best results, you’ll want to give the lemon juice-salt solution some time to do its thing in the garbage disposal – overnight, if you can. During this time, you should avoid using the garbage disposal altogether.

Step 5: Flushing with Water

Once the rust has been loosened and removed, you can turn on the tap and let a steady stream of cold water run through the disposal for a few minutes. This flushes out any remaining residue and rust particles.

Step 6: Toss in Some Ice Cubes

Finally, it’s a good idea to throw some ice cubes into your disposal to finish off the cleaning process. Grinding them up will help loosen any remaining gunk, dirt, or rust that remains inside. You can also help the process along by running cold water while grinding the ice cubes.

How to Prevent a Rusty Garbage Disposal

Now that your disposal is shiny and rust-free, how can you keep it that way? Try these practices to keep rust at bay:

  • Regular Cleanings: A little cleaning goes a long way in preventing the buildup of rust. If you pour that lemon-salt solution into your disposal periodically, you should be able to prevent it from becoming a major problem.
  • Keep it Dry: After using the disposal, run cold water for a few seconds to ensure that all food particles and cleaning agents are fully flushed out.
  • Use Citrus: Yes, you can put orange and other types of citrus peels down the garbage disposal. In fact, they can be good for it! The natural oils and citric acid in the peels not only help combat rust, but act as a deodorizer for your disposal. So, be sure to regularly toss a few citrus peels down the disposal followed by cold water. 

A Smooth, Rust-Free Pathway

Regular maintenance is the bedrock of a functional and reliable garbage disposal. By understanding the causes of rust, taking the necessary precautions, and employing an effective cleaning process, you can ensure that your disposal remains in top-notch condition. Remember, an ounce of prevention is worth a pound of cure, so incorporate these cleaning practices into your routine, and enjoy a rust-free garbage disposal for years to come.

While tackling the rust in your garbage disposal isn’t complex, it does require attention to detail and a methodical approach. But as long as you follow the process outlined above, and are mindful of preventive measures, you can count on a disposal that’s not only rust-free but also a keystone in your kitchen’s cleanliness and functionality. So roll up your sleeves, and let’s get that disposal sparkling again!

Think it’s time to replace your garbage disposal entirely? If you’re looking for a powerful, reliable option, check out the InSinkErator Badger 5 here.

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