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 Dr. Bronner’s Castile 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.

* 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.

Makeup Removal: Wet face and lather several drops of soap into hands. Massage into skin. Rinse.

Hair: A couple drops for close-cropped hair or up to ½ Tbsp. (7.5 mL) for long hair, either worked directly into very wet hair or pre-diluted in a cup of water. Follow with Dr. Bronner’s Citrus Organic Hair Rinse or diluted apple cider vinegar.

Bath: Completely depends upon water amount, but approximately 2 Tbsp. (30 mL) soap in an average sized tub. (Doesn’t bubble, but still cleans.)

Shaving: Face – 10 drops; Underarms – 3 drops; Legs – ½ tsp (2.5 mL); Work to a lather in wet hands, apply to area.

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

Foot Bath: ½ Tbsp. (7.5 mL) in a small tub of hot water.

Clearing Congestion: 1 Tbsp. (15 mL) Peppermint or Eucalyptus Castile soap 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.

Laundry: 1/3-1/2 c. (80-120 mL) soap for a large load in a regular washer. Add 1 c. (240 mL) vinegar to the rinse cycle. Optional: For whitening/deoderizing, add 1/2 c. (120 mL) baking soda to wash cycle. Halve these amounts for HE washers.

Handwashing Delicates: 1 capful soap in about 1 gallon (4 L) cold water. Swish gently. Let soak 10 minutes. Swish again. Rinse with clean water. Gently press out excess water with a towel. Hang or lay clothing flat to dry.

Mopping (Wood, Laminate & Stone Flooring): ½ c. (120 mL) of soap in 3 gallons (12 L) of hot water. Dunk mop (microfiber, preferably) and wring thoroughly. On wood and laminate, avoid excess water and mop up wet areas.

All-Purpose Cleaning Spray: ¼ c. (60 mL) soap in a quart (1 L) of water in a spray bottle. Optional: For extra microbial punch, add ¼ tsp. (1.25 mL) tea tree essential oil.

Windows: 1 Tbsp. (15 mL) soap in a quart of water in a spray bottle. Spray and squeegee. Follow up with pure club soda, or half vinegar/ half water and squeegee.

Toilet: Predilute 1:4 with water in a squirt bottle. Add ¼ tsp. (1.25 mL) tea tree oil. For best results, empty toilet. Squirt bowl thoroughly, sprinkle baking soda on the brush, scrub bowl, let sit 10 minutes, turn water on, flush.

Other Uses:

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

Dog Washing: Wet dog thoroughly. Massage in enough soap to create a good lather. Really massage it in down to the skin. Your dog will thank you for it. (Amount varies based on size, hair type, and overall dirtiness.) Rinse thoroughly.

Cleaning Makeup Brushes: Wet the make-up brushes in water. Add 1-2 drops soap to the bristles. Massage in gently for 10+ seconds, then rinse. Repeat as needed until water runs clear.

Plant Spray for Bugs: 1 Tbsp. (15 mL) in a quart (1 L) of water. Optional: Add ½ tsp. (1.25 mL) cayenne pepper or cinnamon. Spray plants twice daily in the cool of the day until infestation clears.

Ant Spray (Not on Plants): ¼ c. (60 mL) Tea Tree Castile Soap in a quart (1 L) of water. (This concentration will burn plants.)

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

Download a one-page copy of this Castile Soap Dilution Cheat Sheet.

1,472 thoughts on “Dilutions Cheat Sheet for Dr. Bronner’s Castile Soap

  1. Hi there!

    I’m looking to use an infant highchair/tables cleaning spray when we are out.

    May I know if there’s any recipe for it? Or how many part of water to 1 part of Dr Bronner’s baby unscented?

    Thank you! 😊

    • Hi Jiat- The Peppermint or Lavender Hand Sanitizer spray works great for that – and your little one’s hands too. It’s made with just four ingredients: Organic Fair Trade Ethyl Alcohol (for disinfecting), water, organic glycerin, and organic essential oil for scent. It’s available in many natural foods and retail stores and on our website (https://shop.drbronner.com/organic-hand-sanitizer). If you’d like to stick with the All-Purpose Spray, use 1/4 cup Unscented Castile Soap in a quart of water. Scale the solution down for a more portable-sized spray bottle. Spray and wipe with a damp cloth to remove soap and germs.

  2. How do you use this soap for regular hand soap? Straight in the bottle? Does it have to be in the foam pump bottle? Thanks!

    • Hi Trista- 2-3 drops straight from the bottle into hands will do it. We don’t recommend a non-foaming pump dispenser, as the soap can clog and squirt out in unexpected directions, even if diluted. If you do go the route of a foaming pump dispenser, use a ratio of 1 part soap to 3 parts water.

  3. Great tips! I had no idea this one product had so many uses; can’t wait to try them all (well, except for the tooth brushing ;)) Regarding its use for hand-washing delicates: What is the pH level? I have a pair of silk pillowcases which, according to the manufacturer, are to be washed using a pH-neutral detergent and would like to use Dr. Bronner’s 18-in-one Pure Castile Soap if possible. Thanks!

  4. I like to premix the soap with distilled water for showering. I mix 8oz of water to 8oz of soap. Am I doing this wrong? I don’t mind that its cold or anything cause of premixing I just like the convenience of having it ready for showering time.

    • Hi Kendra- Not at all! Go for it! I’m glad you’ve found something you like.

  5. As per someone’s recommendation somewhere, I have been making foaming hand wash with a 1:10 ratio and it seems to work great (have been doing it this way for years, using the peppermint Bronners). However, you recommend 1:3 and now I’m wondering if it hasn’t been totally effective all this time. Your thoughts?

    • Hi Ann- All of my dilutions are a starting place. Tailor them to your needs. If the dilution has been working for you, it’s probably fine. Go with that.

  6. I was thinking of making a cat urine odor room spray. I have carpet that seems to absorb the odors of the litter box over time. I was going to base it off of the cleaning solution (I have the lavender solution) and add a little bit vinegar. Do you have any suggestions for a mixture?

    • Hi Julia- Your best bet is to clean your carpet regularly. In between, sprinkle it with baking soda – a natural deodorizer – brush it in, then vacuum up. Soap sprayed and left on carpets will attract dirt and grime, so avoid that. Also mixing Castile soap with vinegar will cause it to unsaponify. Here’s my post on using Sal Suds on carpets: https://www.lisabronner.com/cleaning-carpets-with-sal-suds/.

    • Hi Kathy- You certainly can dilute (or pre-dilute) our Castile soap when using it as a body wash. However, I’ve found that the water present in the situation does the diluting for me. I also find that prediluted soaps are, well, cold. I use a wet wash cloth and put a small squirt on it and wash away.

    • Hi Betty- The Unscented Castile, or any of the milder scents such as Almond or Lavender, are great for kids. If they’re taking a bath, I just squirt some (probably about a capful) into the bath water and let them soak in that. When my kids were babies, I used a couple drops on a washcloth because I felt I could control where the soap went more easily. You can read more of my thoughts in my post here: https://www.lisabronner.com/using-castile-baby-mild-soap-on-babies/. Keep in mind, no true soaps are tear-free, so keep soap out of the eyes. For hands, a foaming pump dispenser of 1 part soap to 3 parts water works great.

  7. Is it possible to get these recipes but using the bar soap and not only the liquid soap?

    Thanks!

  8. I was hoping to see how much soap to use for an enema as the doctor recommended it.

    • Hi Becky- While the soap is safe to use on all external areas, we recommend caution using it internally as an enema. If you do so, be sure to rinse very thoroughly as leftover soap can be irritating. Check with your doctor for a recommendation.

    • I tried to dilute the liquid soap according to your instructions but still hard to make it pump out after a while so I’ve been using the sugar pump soap. What did I do wrong? 1part soap and 3 parts water.

    • Hi Janice- Are you using a foaming pump dispenser? In a non-foaming pump dispenser the soap can clog and squirt out in unexpected directions, even if diluted.

    • This has happened to me before. I have had to either add more soap or add more water. Try adding more soap first.

    • Hi Janice- You can certainly fiddle with the dilution. I notice that the aerating or foaming chamber sometimes fills with water and doesn’t work. Opening up the pump apparatus, making sure all is clear, and letting it dry out fixes that.

    • At our Preschool we mix 1 part soap to 4 parts water for hand washing of teachers and the children. But you can mix it to your liking. At home I do 1 part Bronner’s to 5 parts water because there I like it a bit less foamy. But at the preschool the kids need a lot of foam to clean their hands. Childcare is messy business.

  9. How does this work really? How does it clean my hair and the toilet effectively?
    Can it be used on babies? Thanks.

    • Hi Liliana- Dirt and grime are the same, regardless of the surface they are on. Castile soap is formulated for skin and is very gentle. Because is it so simple, it can clean just about any other surface as well. The Unscented Castile soap is excellent for babies for it’s gentleness and because it doesn’t contain the essential oils that our scented soaps have. I wrote a post on just that, https://www.lisabronner.com/using-castile-baby-mild-soap-on-babies/

  10. What does pre dilute 1:10 mean for dishes?

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

    • Hi Ana- “1:10” means 1 part soap to 10 parts water. The amount depends on the size bottle you’re trying to fill, but an example is 1/4 c. soap to 2 1/2 cups of water.

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