Homemade Laundry Soap Recipe: A Simple and Effective DIY Guide

There are usually three big reasons people search for a homemade laundry soap recipe: to save money, avoid skin irritants, and reduce their environmental footprint. Making your own laundry soap is an easy, affordable way to gain control over what goes into your wash – no dyes, no synthetic fragrances, and no unnecessary chemicals. Whether you’re interested in lowering costs, managing allergies, or just want a greener lifestyle, this homemade laundry soap recipe will walk you through every step. It’s quick, budget-friendly, and cleans clothes just as well as most commercial detergents.

What You’ll Need for This Homemade Laundry Soap Recipe

• 2-quart saucepan – Once you use it for soap, don’t cook food in it again. Designate it for laundry soap use only.
• 1 bar of soap – Fels Naptha and Ivory are both great choices.
• 1/2 cup washing soda
• 1/2 cup borax
• Water in the following amounts:
  • 6 cups
  • 4 cups
  • 1 gallon plus 6 cups
• 2-gallon bucket with lid (or large container)

Step-by-Step: How to Make Homemade Laundry Soap

Grate the Soap

Grate the soap bar into small flakes.

• Use 1/3 of a bar of Fels Naptha
• Use 1 full bar of Ivory soap

If you don’t want to use a cheese grater, slicing it into thin slivers will also work.

Melt the Soap

Add the grated soap to a saucepan with 6 cups of water. Heat over medium heat, stirring until the soap is fully dissolved.

Add the Boosters

Stir in 1/2 cup of washing soda and 1/2 cup of borax. These two ingredients can usually be found in the laundry aisle. Stir until fully dissolved.

Mix It All Together

• Pour 4 cups of hot water into your bucket.
• Add the hot soap mixture and stir well.
• Then add 1 gallon plus 6 cups of water to the bucket and stir again.
• Let the mixture sit uncovered for 24 hours. It will thicken into a gel-like texture.

Optional: Add Scent with Essential Oils

If you prefer scented laundry detergent, add 1/2 to 1 ounce of essential oil when adding the final water. Popular choices include lemon, orange, lavender, or tea tree oil for a fresh, natural scent.

How Much to Use Per Load

This homemade laundry soap recipe is low-sudsing, which makes it ideal for both standard and HE machines.

• Use 1/2 cup per load for regular laundry
• Use 3/4 cup per load for heavily soiled clothes

Note: Low suds do not mean low cleaning power. In fact, too many suds can interfere with rinsing and leave residue behind.

Pre-Treating Stains

You can use this laundry soap as a pre-treater. Rub a small amount of the gel directly onto the stain, let it sit overnight, then launder as usual.

Why Make Your Own Homemade Laundry Soap?

This homemade laundry soap recipe offers a smart, simple solution for those who want clean clothes without the harsh chemicals and inflated price tags. Whether you’re doing it for your health, your wallet, or the planet – homemade detergent gives you the power to clean with confidence.

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