Dilutions Cheat Sheet for Dr. Bronner’s Castile Soap


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Dilute! Dilute! OK!* But how much? Here is a quick reference. None of this is a hard and fast rule. If your stuff is really dirty or your water is really hard, then you may want to use more than the recommended amount. However, this should get you started. You’ll notice that for some applications, I recommend pre-diluting the soap – combining the soap with water in a container. For other applications, the soap is diluted by the water present in the situation. It’s a matter of personal preference. Keep in mind that if you predilute, you are also diluting the preservative (tocopherols – vitamin E), so the shelf life drops. Use within a couple weeks. And yes, there are 18 uses here. Dr. Bronner's Castile Liquid Soaps

* Long time Dr. Bronner’s users will remember this expression from the old labels.

Body Uses:

Face: 2-3 drops on wet hands, applied to wet face

Body: one small squirt on a wet washcloth, applied to a wet body

Hair: ½ Tbsp. in your hand, worked into wet hair, or dilute ½ Tbsp. in ½ a cup of water and work that into wet hair

Bath: Completely depends upon water amount, but roughly 2 Tbsp. soap in an average sized tub. (Doesn’t bubble, but still cleans)

Shaving: Face – 10 drops; Underarms – 3 drops; Legs – ½ tsp; Work to a lather in wet hands and then apply to area.

Teeth: 1 drop on a toothbrush. (Yes, it tastes like soap.)

Foot Bath: 1 ½ tsp. in a small tub of hot water.

Clearing Congestion: 1 Tbsp. in a bowl of steamy hot water. Breathe in mist with a towel draped over the head.

Household uses:

Dishes (handwashing): Pre-dilute 1:10 with water. Squirt on a scrub brush and scrub dishes.

Laundry: 1/3-1/2 c. of soap for a large load in a normal washer. Add ½ c. vinegar to the rinse cycle. Use half of these amounts for HE

Mopping: ½ c. of soap in 3 gallons of hot water

All-purpose cleaning: ¼ c. soap in a quart of water in a spray bottle. Add ¼ tsp. tea tree essential oil if desired.

Windows: 1 Tbsp. soap in a quart of water in a spray bottle. Follow up with pure club soda, or half vinegar/ half water.

Toilet: Predilute 1:4 with water in a squirt bottle. Add ¼ tsp. tea tree oil. Empty toilet, squirt bowl thoroughly, sprinkle baking soda on the brush, scrub bowl, let sit 10 minutes, turn water on, flush.

Other Uses:

Fruit and Veggie Rinse: 1 dash (approx.. ¼ tsp.) in a bowl of water. Dunk produce and swish. Then rinse in clear water.

Dog washing: Amount varies widely depending on size, hair type and length, and overall dirtiness. I wet my dog thoroughly, then start to work in castile soap up and down their body until I have a good lather. Really massage it in down to the skin. Your dog will thank you for it.

Plant spray for bugs: 1 Tbsp. in a quart of water. Add ½ tsp. cayenne pepper or cinnamon, if desired.

Ant spray (not on plants): ¼ c. tea tree soap in a quart of water. (This concentration will burn plants.)

I’ve tried to keep this short and sweet. If you have any questions, please ask away!

To download a one page copy of this cheat sheet, click here.


458 thoughts on “Dilutions Cheat Sheet for Dr. Bronner’s Castile Soap

    • Hi Amy – Not as good as Sal Suds, but still effective. If you would prefer to stick to an organic cleaning regimen, the castile soap will do well. Make up a spray bottle with the All Purpose spray (1/4 c. castile and a 1 qt. water) and spray the stains. Work it in with your fingers and then use damp microfiber cloths to rub it out. Be sure you get all the soap out of the carpet or else it will attract more dirt.

    • Yes, the soap would work well to clean a humidifier. If you can take it apart, you can wash the plastic pieces in a sink of hot, soapy water. Use a cloth dipped in the water to wipe off the housing for the motor, taking care not to get water in the motor or electrical system.

  1. For the Windows, you mention “Follow up with pure club soda, or half vinegar/ half water”. So after spraying with soap/water, then spray another solution of club soda? Sorry I didn’t get it, haha

    • Hi Brian – If your window dirty with more than just fingerprints and water spots, then you’ll want to wash it with the soap/water spray and wipe it down. After you have wiped it down, then spray with either pure club soda or a vinegar/water spray and squeegeee it off. If your windows just have fingerprints or water spots, you can jump right to the club soda or vinegar spray.

  2. Wow, I’m so glad I found this stuff. A friend of mine told me about this soap and I am hooked. I’m learning more and more about it’s uses. Thank you for the info.

    • Hi Cinthia – Newborn skin is very delicate, and for the first few weeks, no soap is really necessary. Simply a sponge bath with skin temperature water is the best thing, especially until the umbilical stump heals. (I remember wrapping my little ones in a cozy towel and wiping down one part at a time, keeping the rest wrapped and warm.) However, after this time, our unscented Baby Mild soap is great for their skin. It is gentle, non-drying, with no fragrance (synthetic or otherwise) that might irritate their still-delicate skin. However, I always want to remind users that soap – any true soap – is not tear-free. Only synthetic detergents can be tear-free. No natural product is tear-free. You can read more about my experiences washing my little ones here: http://www.lisabronner.com/using-castile-baby-mild-soap-on-babies/.

  3. Hi could you tell me what percentage of tea tree oil is in your soap as a minimum of 1% is needed to wash the body daily to treat MRSA infection and if you do a tea tree cream organic as well if so what percent is in that

    • Hi Ingrid – There is a 2% concentration of tea tree essential oil in the liquid castile soaps. We do not have a tea tree cream.

  4. Hi Lisa – is there a special dilution to use for baby clothes in the laundry? Thanks!

    • Hi Alice – I would use the unscented Baby Mild liquid castile at the dilution I mention above for general laundry. For stubborn baby stains, the Sal Suds is slightly more effective. It’s plenty mild for babies with no synthetic fragrance or colorants. And it can be applied directly to stains.

  5. Do the pictures on the right corrospond with the ‘cheats’ to the left of them? More specifically, can I use basically any flavor for any of the above ‘cheats’? (with the exception of babies and pets, of course….)

    • You can use any of the fragrances for the cheats. The pictures do not correspond with the tips they’re next to.

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