I have been using my recipe for dishwasher detergent for about 6 months. Sometimes my dishes had a dull film on them (as report on other sites). To fix this, I used Seventh Generation dishwasher detergent once per week. It seemed to keep things under control, but I wanted to create a formula that worked all on its own. I read about using citric acid and finally ordered some from Mountain Rose. The citric acid was THE ANSWER!! After using my new and improved dishwasher formula one time, the inside of my dishwasher was white and clean. And my dishes were sparkling!! I have been using it all week with excellent results – no film, only squeaky clean dishes. I am very excited!!

  • 1  cups borax
  • 3/4 cup baking soda
  • 3 tablespoons citric acid
  • 2 1/2 tablespoons of ground castile bar soap

Pour borax, baking soda, and citric acid into a glass jar. Shake to mix. Add soap and shake to mix again. Use about 2 TB per load.

I have soft water. I have read other recipes that call for about 1/4 cup salt, which may help for hard water areas.

Notes about soap: I use a food processor shredder attachment to shred Dr. Bronner’s bar soap (any flavor) and then I use the regular food processor blade to mince it into a powder.

**Update 2/16/09: I have been using this recipe now for over 3 months, and it still works extremely well, better than other natrual detergents that I have purchased. It seems to work best when fresh so I reduced the size of the recipe (changes are shown above).

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10 comments untill now

  1. where do you but castile soap and citric acid? thanks for the receipe

  2. I buy my castile soap locally in Lancaster, PA at Savemart. They have great prices and it only costs $2.93 per bar! I bought citric acid online from Mountain Rose, but I am going to try to find it locally. I heard that places may have it with canning supplies??

  3. are you still using this recipe? I’m very tempted to try it. please let me know how it’s working out. Thanks!

  4. I am not currently using this recipe. I had trouble with my citric acid; it lost its fizz. This will only work with good citric acid.

  5. are you using a different recipe or have you gone back to commercial products?

  6. I am using Seventh Generation until I have time to figure out another solution.

  7. I want to try this!! I have it all, save for the citric acid. My husband informed me he has it at work, so I will have him bring some home to try it. I assume it will be active…or fizz, since he needs it for chemical reactions in his lab. SWEET, thank you!!

  8. Hi,
    I’ve been using this recipe (including the Citric Acid) for about a month and our dishes have that white film on them. Do you think its the castille soap that coats?

  9. Ali – Do you have hard water? That causes a white film. Does your citric acid foam/fizz when it gets wet? When mine lost the fizz, I started getting the film again.

  10. The Dr. Bronner website specifically mentions not mixing their soap with vinegar since the soap is a base and vinegar is an acid. They end up having a chemical reaction that can make a solid reside. That same sort of thing could also happen with citric acid.