Where Can I Buy Washing Soda?

Washing Soda. Photo © Erin Huffstetler

Washing soda (also known as sodium carbonate, soda ash and soda crystals) is a common ingredient in homemade laundry detergent recipes and other homemade cleaners, but it's not the easiest product to find. So, where should you look for it?


  • The laundry aisle in grocery stores or big-box stores (like Walmart)
  • Hardware stores
  • International grocery stores
  • Pool supply stores

And if you still aren't able to find it locally, you can buy it from Amazon.

Washing soda is sold in a large, yellow box. Arm & Hammer is the most common brand, so look for their red logo. They recently started putting it in an orange box that looks almost exactly like their baking soda box, so keep an eye out for either box design. It's hard to say which one you'll find in stores.

Make Your Own Washing Soda

Have baking soda in your pantry? Then, consider making your own washing soda. It's ridiculously easy to make. Here's how it's done.

What is Washing Soda Anyway?

Washing soda is a naturally occurring substance derived from the ash of sodium-rich plants. Sometimes it's manufactured synthetically, but whether nature-made or man-made, it's just a chemical compound consisting of sodium, carbon and oxygen. 

Washing soda is a white, odorless powder that looks very similar to baking soda, though the texture is slightly grittier. Take care to store washing soda in a dry area because it absorbs moisture readily, and will turn brick-hard when it does.

Uses for Washing Soda

Washing soda is used in many commercial products, including detergents, toothpaste and many foods. It has just as many household applications, and is frequently used to soften water, make cleaners, remove laundry stains and fix dyes to fabric. It shows up often as an ingredient in homemade laundry detergent and dishwasher detergent

Check out ArmandHammer.com for lots of ideas on how to use washing soda around the house.