DIY Homemade Laundry Detergent Recipe

Homemade Laundry Detergent Summary

• Homemade laundry detergent is a DIY cleaning agent typically composed of washing soda, borax, and grated bar soap.
• Cut your costs by 90% per load. While commercial brands can cost up to $0.45 per cycle, your DIY formula averages just $0.02 to $0.05.+1
• Skip the synthetic fragrances, endocrine disruptors, and optical brighteners found in commercial brands. It’s a win for your clothes and your sustainability bias.
• This is a simple project you can “whip up” on a Saturday afternoon without it feeling like a tiresome chore.

If you've ever stood under the detergent aisle feeling that same budget-fueled frustration over pricey soap bottles, you know exactly what I mean! That's why I decided to go DIY. Here’s the homemade laundry detergent recipe I used to get fresh-clean, odor-free clothes.

RELATED: Eco-Friendly DIY Cleaners: Go Green with These Cleaning Recipes

Kitchen Chemistry: The Three-Pillar Formula

Effective DIY laundry soap requires three core pillars: a surfactant to lift dirt, an alkaline builder to soften water, and a pH-adjuster to remove stains. Specifically, you'll need a bar of grated soap, one cup of washing soda, and one cup of borax. While seemingly basic, this isn't just a craft project: it's actually a functional chemical reaction. Washing soda, or sodium carbonate, is the alkaline builder. It increases the water’s pH, which helps the soap remove grease and organic soil. Borax acts as a natural whitener and deodorizer. Finally, the soap bar provides the surfactants needed to trap dirt so it can be rinsed away.

The Homemade Laundry Detergent Practitioner’s Method and the 30-Second Hack

The process of making your own homemade laundry detergent involves three steps: finely grating the soap bar, blending it with equal parts borax and washing soda, and storing it in an airtight glass container. An unused food processor can significantly improve the consistency and solubility of the resulting powder.

1. The Prep: Shave one bar of soap using a cheese grater. For best results, use Fels Naptha or Ivory brand; the latter is much easier to find.
   • Option: If you want to avoid the cheese grater workout, chop the soap into chunks and throw it in a food processor for 30 seconds with a bit of the washing soda.
2. The Mix: In a large bowl, combine the following:
   • 1 cup of Borax
   • 1 cup of Washing Soda along with your soap dust.
3. The Storage: Transfer the mix to a glass apothecary jar. Not only does it keep the powder dry, but it upgrades the vibe of your laundry room instantly.
4. For actual washing, use 1 or 2 tablespoons per load.

There you have it. Save for the soap grating, making your own homemade laundry detergent is a simple process.    

Appliance Safety and HE Machine Compatibility

Homemade laundry detergent is compatible with High-Efficiency (HE) washing machines because it is naturally low-sudsing. Since DIY soap lacks the synthetic foaming agents of high-suds brands, it is a functional fit. The trade-off is the lack of modern enzymes, such as protease, found in store-bought jugs. For grass or blood stains, you will still want a dedicated pre-treater to do the heavy lifting.  

For users residing in hard water areas, monitor your load for soap scum buildup because natural soap can react with minerals and create deposits on machine parts.

Bespoke Aromas and the Jar Aesthetic

Customization can be achieved through pure essential oils and additives like baking soda for extra deodorizing. Unlike synthetic fragrances, oils like lavender, cedarwood, or grapefruit provide a non-toxic, biodegradable aroma profile. In contrast, store-bought scents will often make your laundry smell like it came from a factory. By adding 20 drops of your own oils, your clothes will smell like actual plants and turn your chore into a luxury experience.

In addition, when you see that massive glass jar on your shelf with a wooden scoop, you'll quickly realize that you just didn't save 90% in costs per load. You have also upgraded your home’s entire aesthetic.

Check out the original post from Homesteading.com if you want a deeper dive into the hardcore homesteading life!

Try Making Your Own Laundry Detergent Today

It's officially time to say goodbye to those expensive, watered-down grocery store detergent bottles and say hello to an effective, eco-friendly formula that's truly safe to use. By taking just a few minutes out of your weekend to whip this up, you’ve solved that budget-fueled frustration and completely bypassed the synthetic chemicals found in commercial brands. Start with a small batch, see how it works for your laundry needs, and adjust as needed. Simple changes like this can make a meaningful difference in your everyday routine. 

We hope you enjoyed our super-easy tutorial on simple powder laundry soap. Share your experience in the comments section by telling us how this worked out for you.