Homemade laundry detergent can be environmentally friendly, plus, save you money.

There are many variations of this laundry detergent recipe, but we prefer the liquid version since it works best in high efficiency front loaders.

Below you’ll find all the ingredients, exact measurements, steps to follow and the total cost.

Happy DIY laundry detergent making!

Ingredients

Homemade laundry detergent ingredients on a table
  • 18 cups of water
  • 1 Dr. Bronner’s Peppermint Bar Soap, or Fels Naptha soap bar
  • 1 cup of Arm & Hammer Super Washing Soda (Baking Soda will not work – It must have sodium carbonate)
  • 1/2 cup of Borax
  • 3 gallons of hot water
  • 5 gallon bucket

How to Make Homemade Laundry Detergent Steps

Step 1 – Grate the Soap

Grate the Dr Bronner’s soap, or Fels Naptha soap, using a food processor or a hand grater. (Tip: This will help the soap dissolve quickly.)

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Step 2 – Simmer the Water

Bring 18 cups of water to a simmer.

Step 3 – Add Grated Soap to Water

Pour the grated soap and stir until it is dissolved.

Step 4 – Add Washing Soda

Add one cup of Arm & Hammer Super Washing Soda. (Tip: Must be sodium carbonate.)

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Step 4 – Add Borax

Add 1/2 cup of Borax and stir until it is completely dissolved.

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Step 5 – Add Gallons of Hot Water

Add 3 gallons of hot water to a 5 gallon bucket. Then pour your dissolved ingredients mixture into the bucket with the gallons of water and stir.

Step 6 – Let The Mixture Sit Overnight Before Use

Let it sit overnight and then it is all ready to be used.

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Cost

When using homemade laundry deterrent the cost per load can be as low as 0.03c.

We have also this quick glance eco-friendly laundry detergent cost comparison.

Here is how to calculate the cost for 4 gallons of homemade laundry detergent.

  • 1 bar Fels Naptha at $1.29
  • 55 oz box Arm & Hammer Super Washing Soda at $2.75 (1 cup cost .40¢)
  • 76 oz box Borax at $3.79 (1/2 cup cost .20¢)
  • 4 gallons = 64 cups or 64 heavily soiled loads
  • Total cost per load = 0.03c