GIY Soft Scrub with Dr. Bronner’s

This GIY trick is the magic of chemistry right before your eyes!

Soft scrub is a great aid to clearing away soap scum, ring around the tub, mold, stubborn water spots on glass. It’s a great way to shine up your kitchen sink. You’ll probably find that you keep this bottle just as handy as your Dr. Bronner’s All Purpose Spray.

This soft scrub will remain blended in your cabinet, so you don’t need to remake it every day. Unless of course, you use it up. Which you will. Because you’ll love it, too.

Here’s the recipe from the video all written out:


1 c. (240 mL)  Dr. Bronner’s Castile Soap OR ¼ c. (60 mL) Dr. Bronner’s Sal Suds
3⅓ c. (800 mL) baking soda
1 c. (240 mL) water
¼ c. (60 mL) white vinegar

In a big bowl, combine the baking soda with the Castile Soap OR the Sal Suds. Mix it with a fork until well blended and no lumps remain. Add in the water and mix thoroughly again. Add in the vinegar and keep stirring until no lumps remain. (If you’re wondering about the vinegar with the soap, check out the video for an explanation!) Add additional water if needed until mixture is a pourable consistency. Pour the solution into an empty quart bottle, using a funnel.

To use this, squirt it over the surface and wipe with a damp microfiber cloth. Rinse with a wet cloth.

(And remember: since these ingredients are totally safe and non-toxic, kids can use them, too! Hand this bottle over to them and let them scrub away!)

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Floriana says:


I tried making this scrub but a few days (maybe a week) after transferring it in a bottle it became rock hard!! I had to throw it away. I tried putting the bottle in warm water, adding warm water, even adding vinegar. Nothing helped. When I mixed Sal Suds and the baking soda the mixture became quite warm, I don’t know if this helps the investigation! Has this happened to anyone?

Lisa Bronner says:

Hi Floriana – I’ve been discussing this with our R&D folks, and we have not figured it out. It is that last clue that has particularly stumped us. we can’t figure out why mixing the Sal Suds and baking soda would produce heat. Heat is produced when two substances react with each in an exothermic reaction, but baking soda and Sal Suds don’t react with each other. There are other mixtures that would produce react and heat, such as when you add the vinegar and it reacts with the baking soda. This is a weird question, but is there a possibility that the baking soda is something else?


Lisa Bronner

Green means life. “Going Green” is living in such a way to promote vitality and vibrancy in every sphere of life. Grab an idea to make your days healthier, simpler, and more beautiful at their core.