How to make the best DIY homemade laundry detergent. This recipe is non-toxic, fights stains better than commercial detergent, and cheap! I’ve been making this liquid laundry detergent for years (originally shared in 2014!) because of its amazing cleaning power.

Homemade Liquid Laundry Detergent

What Readers Say

“Perfect recipe! Just tested it today, and my laundry smells wonderful and cleans very well! Will use this recipe instead of constantly going to store just to buy a new bottle of detergent every time I run out of it.”

MELISSA

10 years ago, I started making the switch to natural cleaning products, including laundry detergent!

I’ll never forget the look on my family’s face when I proudly announced my new venture: homemade laundry soap. “You made what?

At that time, the majority of recipes online called for a bar of fels naptha, washing soda, and Borax. The first time I made this original recipe, our clothes came out with chalky white spots.

The second time, I made a simple swap: liquid Dr. Bronner’s castile soap instead of the fels naptha soap bar. This time, the detergent worked just as good as Tide.

I set out to make a homemade liquid detergent that was effective at fighting stains and odors, and didn’t ruin our clothes. Success!

DIY Homemade Liquid Laundry Detergent Soap
Ready to use detergent, made in less than 20 minutes.

Why Make Your Own Homemade Laundry Detergent

  • SAVE MONEY – It costs about $20 to purchase the ingredients, which make multiple batches of homemade detergent and clean many loads of laundry. Castile soap alone has over 24 different uses.
  • NON TOXIC – Many commercial detergents are made with fragrances and harsh chemicals that can irritate sensitive skin. The ingredients used to make this recipe are safe and well researched.
  • IT WORKS – This DIY detergent brightens, removes dirt, and fights off stains.
  • QUICK & EASY – You only need 10-15 minutes of hands-on preparation time to make this easy recipe.
Ingredients needed to make homemade laundry soap.
Simple ingredients: liquid castile soap, borax, washing soda, water, and essential oil (optional).

Ingredients Needed

This recipe, made with simple ingredients, makes 1 gallon of homemade soap.

  • 1 cup borax (freshens, deodorizes, and lifts dirt and stains)
  • 1 cup washing soda (freshens and deodorizes)
  • 1 cup liquid castile soap or Sal Suds (the main cleaning agent, lifts dirt and cleans)
  • 50 drops essential oil (optional for a scent)
  • 15 cups water (distilled water, found in any grocery store, is best as it doesn’t contain containments found in tap or filtered water)

Equipment Needed

How to Make DIY Laundry Detergent

Thicker Detergent Tip: This recipe calls for 15 cups of water. If you’d like a thicker, more concentrated soap, use 10-12 cups of water.

Pouring water into a large dutch oven to make the soap.
Add 6 cups water to a pot, bring a boil. Then turn off heat.

Step 1: Boil 6 Cups of Water

In a large saucepan or Dutch oven, bring 6 cups of water to a slight boil. Once the water begins to boil, turn off the burner.

Step 2: Add All Remaining Ingredients

Add the Borax and washing soda. Stir to dissolve. Then add 9 cups of room-temperature water and 1 cup of liquid castile soap. Give the ingredients a stir to combine.

Pouring the laundry soap into a large glass mason jar.
Beautiful, homemade soap! Ready to use and store for later.

Step 3: Allow to Cool for 5-10 Minutes

Allow the soap to cool for a few minutes before pouring into one large gallon-size jar or smaller containers, like quart-size jars. Make sure your jar(s) are heat-safe. If not, wait until the soap is cool, then spoon the soap into the jar(s).

If you’re reusing an old detergent bottle, make sure the soap is fully cool before adding to a plastic container.

Adding essential oil to the detergent in a glass jar.
For a subtle scent, add an essential oil (if desired).

Step 4: Add an Essential Oil For Scent

Add an essential oil of choice (if using) to the soap (now in the jar) and stir to combine with the detergent.

The essential oil will add a subtle fragrance, but shouldn’t be added until the soap cools as heat will cause the essential oil to evaporate.

Stain on shirt on the left and no stain after using the detergent.
My daughter’s chocolate stain on the left and after using this detergent in the wash. The stain lifted!

How to Use This Liquid Soap

The detergent is ready to use immeadiately after making. And may be stored for later use.

  • Give the jar a good shake or stir (with a long spoon) before use.
  • Use this detergent just as you would any laundry soap to clean clothes.
  • This homemade liquid laundry soap is highly concentrated which means you need only a small amount to get a dirty job done.
  • For top loading washer machines, use 1/8-1/4 cup.
  • For a front loader, use 1-2 tablespoons.
  • Add the detergent directly to your washer or the laundry soap compartment.

With the leftover castile soap, make over 24 different household products, from all-purpose cleaner to stain remover to homemade face wash!

How to Store

Laundry soap in glass containers.

FAQs

Yes, you can. Use a cheese grater to grate a bar of castile soap into the hot water (along with the borax and washing soda). Stir and continue to boil the ingredients to dissolve fully (takes about 10 minutes). I also use a bar of castile soap to make powder laundry soap.

Yes, this is normal. For a thicker, more concentrated detergent, there are two options: use Sal Suds instead of castile soap OR reduce the water to 10-12 cups for a more concentrated detergent.

Yes, this is normal. Depending on your home’s temperature, the soap may be more liqiud or even chunky (like a gel). Both are normal and usable!

If your environment is cooler, your laundry soap may gel after cooling. Or it may not. This is normal.

Borax is a debated ingredient in naturally-minded circles. I personally don’t see any reason to avoid it. This borax article from Wellness Mama has fantastic information.

Yes, you can. You can either add the garment to the washer or add the garment to your kitchen sink with the soap and water and soak the garment to lift the stains. Or, apply the soap directly to the stain and scrub. If you’re dealing with tough stain, I recommend using this homemade stain remover before washing the garment.

Yes, it does. I have hard water and this soap works great. You may want to use this laundry softener recipe as well.

Have a specific question? Leave a comment below and I’m happy to answer.

Learn how to make natural cleaners for your home

Homemade Liquid Laundry Detergent
4.82 from 81 votes

Homemade Liquid Laundry Detergent

With four simple ingredients and ten minutes, you can make your own homemade laundry soap. Nothing fancy, just simple ingredients that freshen, deodorize, fight stains, and remove dirt.
Kristin Marr
Prep Time10 minutes
Cook Time10 minutes
Total Time20 minutes
Course DIY, Homemade
Cuisine Cleaning
Servings 16 Cups
Cost: $5 per batch

Equipment

Ingredients

Instructions

  • In a large saucepan or Dutch oven, bring 6 cups of water to a slight boil. Once the water begins to boil, turn off the burner.
  • Add the Borax and washing soda. Stir to dissolve. Then add 9 cups of room-temperature water and 1 cup of liquid castile soap. Give the ingredients a stir to combine.
  • Allow the soap to cool for a few minutes before pouring into one large gallon-size jar or smaller containers, like quart-size jars. Make sure your jar(s) are heat-safe. If not, wait until the soap is cool, then spoon the soap into the jar(s).
    If you're reusing an old detergent bottle, make sure the soap is fully cool before adding to a plastic container.
  • Add an essential oil of choice (if using) to the soap (now in the jar) and stir to combine with the detergent.
    The essential oil will add a subtle fragrance, but shouldn't be added until the soap cools as heat will cause the essential oil to evaporate.
  • As the soap sits, the mixture may form into a gel and become chunky. There may also be liquid and gel separation, simply stir or shake. This is normal.

How to Use

  • For top loading washer machines, use 1/8-1/4 cup. For a front loader, use 1-2 tablespoons.
  • Stain Treatment: Use a small amount of soap directly on the stain, scrub or rub the stain with a cloth. Repeat as needed, then wash the garment. Or use this stain remover spray.

Notes

  • Give the jar a good shake or stir (with a long spoon) before use.
  • Use this detergent just as you would any laundry soap to clean clothes.
  • This homemade liquid laundry soap is highly concentrated which means you need only a small amount to get a dirty job done.
  • Add the detergent directly to your washer or the laundry soap compartment.
Tried this recipe?Let me know how it was!

441 Comments

  1. Mine got sudsy on top of the jug and gelled up and got quite clumpy in the rest. Still safe to use? Should I add more water?

  2. Hello! My laundry soap is clearer than the yellow soap shown in the picture. Is that normal or did i not use enough of an ingredient?
    Thank you!

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating




This site uses Akismet to reduce spam. Learn how your comment data is processed.