Allow the washing soda to cool, then transfer it to an airtight container for storage. Use your washing soda as an ingredient in homemade laundry detergent, soften hard water, to scour messes out of a baking dish, and much more!
If you compare your DIY washing soda with baking soda side by side, one thing you’ll notice is that washing soda feels a bit grainy compared to the silky smooth baking soda. (Fun fact: The washing soda will also weigh less than the baking soda did originally, due to the loss of water and carbon dioxide.)
Note: You can also make washing soda on your stovetop, in a toaster oven, or even in an air fryer — as long as the baking soda gets hot enough, long enough! (I would avoid trying to make washing soda in your microwave, though, since bicarbonate doesn’t play well with microwaves.)
Where Can I Buy Washing Soda?
If you don’t want to make it yourself, you can usually find Arm & Hammer super washing soda in the laundry aisle at grocery stores and big box chains. If you don’t see it right away, check the top and bottom shelves. That’s where I usually find it!
You can also find washing soda online at Amazon and other online retailers. Some people suggest getting it from pool suppliers, but industrial forms of sodium carbonate (like AquaChem) have a slightly different chemical structure and may not be suitable for household use. Better to stick to the store-bought and homemade varieties!
Have you made DIY washing soda at home?
How To Make Washing Soda From Baking Soda
Jill Nystul
Washing soda is an essential ingredient in homemade laundry detergent, but it’s not always easy to find. Luckily, it’s easy to turn baking soda into washing soda!
Active Time 1 hour hr
Total Time 1 hour hr
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