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How to Remove Mustard Stains From Carpet

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In this post, I'll show you EXACTLY how to remove regular mustard stains, and set-in mustard stains from carpet.

How to Remove Mustard Stains From Carpet

As a carpet cleaner, when I come across a spot or a stain in a carpet, the very first thing I do is attempt to take that contaminant out of the carpet. This is called spot removal.

Unfortunately, spot removal does not always work. Like with a mustard stain, sometimes dyes or pigments become permanently stuck to the carpet fibers, resulting in a set-in stain. When this happens, we need to use a chemical reaction to destroy the pigments that are stuck to the carpet fibers. This process is called stain removal.

My advice before using this stain removal method: read this entire page from top to bottom, and watch the video at the bottom of the page. If you don’t follow these steps closely, or if you overuse this method, you could end up causing discoloration to your carpet.

This stain removal method (advanced oxidation reaction) should only be used after attempting to remove the mustard stain with a spotter, or carpet shampoo. Remember we want to take as much of the contaminant, including dried chunks or pastes, out of the carpet before using a stain removal method.

There are a huge variety of spotters that can be used to remove spots from carpet. This includes store bought spotters like Resolve, Spot Shot, Folex Instant Carpet Spot Remover  or TriNova Spot Remover. You can also use my homemade spotter recipe.

To use the advanced oxidation stain removal method, you will need 3% hydrogen peroxide or 6% hydrogen peroxide for the oxidizing agent. In the demo below, I will be using 6% salon grade hydrogen peroxide. 6% hydrogen peroxide can be used to remove many different types of stains, and it works significantly better than 3% hydrogen peroxide.

You will also need a 395nm UV light. The UV light causes the hydrogen peroxide to split into hydroxyl radicals (OH-). Then these hydroxyl radicals attack the yellow mustard pigments causing them to break down and become invisible.

What if I do not have a UV light? Well, unfortunately you cannot create and advanced oxidation reaction without a UV light. The good news is that there are many affordable UV light options on amazon, or you can even use a UV nail light which is used for drying cosmetic gel nails.​

In the demo below, I will be using a 10-watt UV light. If you are shopping for a UV light, I recommend looking for one that can be plugged into an electrical wall outlet. Battery powered lights are typically not strong enough to remove carpet stains.

Remove Mustard Stains From Carpet (Step-By-Step Guide)

YOU WILL NEED:

1) 70% Isopropyl Alcohol (USA, UK, CAN)

2) White Cloths (USA, UK, CAN)

3) UV Light (USA, UK, CAN

4) 3% or 6% Hydrogen Peroxide (USA, UK, CAN)

Mustard Spots
How to Remove Mustard Stains From Carpet - Step 1

Step 1 (Spot Removal) - Use a spotter to remove as much of the mustard spot/stain from the carpet as possible. Rubbing alcohol, isopropyl alcohol, or Windex window cleaner are three great options for removing mustard spots from carpet. Apply the spotter/cleaning agent, then blot with a white cloth. 

How to Remove Mustard Stains From Carpet - Step 2

Step 2 (Spot Removal)- Apply the spotter, blot the mustard stain, and repeat until the stain has come out of the carpet. If the mustard stain does not fully come out of the carpet proceed to the stain removal method below. 

Set-In Mutard Stains
How to Remove Mustard Stains From Carpet - Step 3

Step 3 (Stain Removal) - Allow the carpet to completely dry before using the stain removal method. This stain removal method is called an advanced oxidation stain removal method. You will need 3% or 6% hydrogen peroxide and a 395nm UV light. Spray the 6% hydrogen peroxide liberally around the stained area. 3% hydrogen peroxide can be used instead of 6%, but it will take more time for the stain to come out of the carpet.

How to Remove Mustard Stains From Carpet - Step 4

Step 4 (Stain Removal) - Ensure all of the stained carpet fibers are coated in hydrogen peroxide.

How to Remove Mustard Stains From Carpet - Step 5

Step 5 (Stain Removal) - Plug the UV light in and place it on top of the stain for 15 minutes. Do not place the UV light directly on top of the carpet because the heat from the light could damage the carpet. 

Note that the recommended 15 minute time interval should be adjusted on a case by case basis. Check the stain removal progress frequently and increase or reduce the 15 minute interval as required. 

How to Remove Mustard Stains From Carpet - Step 6

Step 6 (Stain Removal) - After 15 minutes, you will see that the yellow stain is starting to disappear. UV light causes hydrogen peroxide molecules (H202) to split into hydroxyl radicals (OH-). Then the hydroxyl radicals attack (break down) the millions of tiny yellow curcumin molecules/pigments that are stuck in the carpet. As the curcumin molecules/pigments are broken down, they lose their color properties and become invisible. 

How to Remove Mustard Stains From Carpet - Step 7

Step 7 (Stain Removal) - Rearrange the carpet fibers to expose other parts of the stain. You may have to groom the tufts into a valley to expose the parts of the stain at the base of the tufts. Using the UV light, cover the stained area and allow it to sit for another 15 minutes (adjust the time intervals as necessary).

How to Remove Mustard Stains From Carpet - Step 8

Step 8 (Stain Removal) - Once the yellow stain is gone, turn the UV light off. Leaving the UV light on for multiple hours, or days could result in permanent color loss from your carpet. Make sure you do not use this advanced oxidation method for longer than necessary. When you are done, use a towel to absorb any remaining liquid from the carpet. The hydrogen peroxide will turn to water and leave zero residue. ALSO! Make sure you check out my video instructions below!

This page contains affiliate links. If you use these links to buy a product, TheStainGuide.com may earn a commission. Thanks for your support!

How to Remove Mustard Stains From Carpet - Step 9

Step 9 (Stain Removal) - When the stain is gone, use a towel to absorb any remaining liquid from the carpet. The hydrogen peroxide will turn to water and leave zero residue behind in the carpet. ALSO! Make sure you check out the video instructions below!

How to Remove Mustard Stains From Carpet - Step 10

Step 10 (Stain Removal) - Final results! Check out the video instructions below. 

This page contains affiliate links. If you use these links to buy a product, TheStainGuide.com may earn a commission. Thanks for your support!

Remove Mustard Stains From Carpet Video Instructions

 

This video will demonstrate how to remove mustard spots or set-in mustard stains from carpet. 

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