Dr. Bronner's

Sal Suds Dilution Cheat Sheet

Sal Suds

Update May 2022—I’ve added a few uses to both the Sal Suds and Castile Cheat Sheets. Plus: All four Cheat Sheets are now available in Spanish! (See the side bar to download or print.)

There is a lot of overlap here with the Castile Soap Dilutions Cheat Sheet because the products can often be interchanged. It is largely a matter of personal preference, but the Sal Suds Biodegradable Cleaner is more clean-rinsing in hard water situations, and is slightly more effective on grease and tough stains. As with the Castile soaps, these recommended dilutions are not set in stone. You may have dirtier stuff, larger sinks, a larger washer, etc., and may need to tweak these amounts to your own situation.

Sal Suds, Sal Suds, how do I love thee?

I use it for…
Clothes, towels & sheets
Halloween costumes
Tile & bamboo floors
Granite, quartz, marble, tile
Painted walls & shelves
Plastic trash cans
Makeup brushes
Stainless steel water bottles
Brita water filter pitcher
Plastic cooler
Exterior of small kitchen appliances
Stainless steel appliances
Glass vases
Cork trivets
Rubber oven mitts
Wood, bamboo & plastic cutting boards
Dog & cat bowls, carriers & collars
Cars, inside and out
Finished, sealed, or painted wood
My grill (aka bar-b-que)
Outdoor metal & plastic furniture
Plastic toys
Plastic storage bins
Paint brushes
Wicker baskets
Artificial greenery
Painted MDF
Toothbrushes & brush holder
Porcelain bathroom fixtures—toilet, tub, sink, handles, faucets
Metal doorknobs
Plastic light switches & covers
Diaper changing pads
Silicone parts of my breast pump
My plastic nasal irrigator
Nylon camping tents
Beach balls, rafts & pool toys
Fruits & veggies
Trumpets, saxophones & trombones

All this to say, I use Sal Suds A LOT! In fact, it might be more efficient to list what I don’t wash with it. The long and short of it is, if it’s not on this list, then I probably didn’t think of it. Sal Suds is safe for any surface or material that can get wet (but it’s not meant for people or animals—it can be drying). However, if you have something that’s iffy, do a spot test.


Dishes (Handwashing): ½ – 1 ½ tsp. (2.5 mL to 7.5 mL) Sal Suds in a large sink of water. Or 1 drop Sal Suds for one pot, more if needed.

  • So I don’t use too much, I keep a bottle of diluted Sal Suds by my sink: ½ c. (120 mL) of Sal Suds in a quart (1 L) of water. A small squirt in a pot or a larger squirt for a sink.
  • With All-Purpose Spray: Using a Sal Suds Spray to Clean Dishes

Laundry: : 1 to 1 ½ Tbsp (15 to 22 mL) for a large load in a top loading washer. Optional: For extra whitening/brightening, add ½ c. (120 mL) baking soda to wash cycle and/or 1c. (240 mL) vinegar to rinse cycle. Double these amounts for standard (non-HE) washers.

Pretreating Laundry Stains: Pre-measure Sal Suds for load. Apply some or all directly to stain(s). Let sit 30 minutes or more. Add remaining Sal Suds to washer. For broad stain, spray with a solution of half Sal Suds/half water.

Handwashing Delicates: ½ capful (½ Tbsp. or 7.5 mL) Sal Suds in about 1 gallon (4 L) of water. Swish gently. Let soak 10 minutes. Swish again. Rinse with clean water. Gently press out excess water with a towel. Hang clothing or lay flat to dry.

Mopping (Wood, Laminate, Vinyl, Stone & Tile): 1 tsp. (5 mL) Sal Suds in 1 gallon (4 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: 1 Tbsp. (15 mL) Sal Suds in a quart (1 L) of water. Hint: Put water in the bottle first. Spray and wipe with a damp cloth. Optional: Add ¼ tsp. (1.25 mL) tea tree essential oil. Use on any surface that is safe in contact with water.

Window Wash: (aka Sal Suds Lite) ½ tsp. (2.5 mL) in a quart (1 L) of water. Spray and squeegee. Follow with a spray of pure club soda, or half vinegar/half water, and squeegee.

Stainless Steel Appliances & Sink: Spray appliance with All-Purpose Spray. Wipe with a soft damp cloth in the direction of the grain. Spray sink and sprinkle with baking soda from a shaker. Scrub then rinse.

Toilets: For best results, empty toilet. Spray bowl thoroughly with All-Purpose Spray, or sprinkle 2-3 drops of Sal Suds directly on toilet brush. Sprinkle baking soda on a brush, scrub bowl. Let sit 10 minutes. Turn water on. Flush.

Fruit & Veggie Wash: 1 drop of Sal Suds in a bowl of water. Dunk and swish the produce. Rinse in clear water.

Oral Appliances & CPAPs: Removable retainers, nightguards, etc. & dentures: Wet device. Add 1-2 drops of soap to a soft toothbrush. Brush gently, then rinse. CPAP mask, tubing, and headgear: Submerge in a warm water with a small squirt. Allow to sit 30 minutes, then wash, rinse, and towel dry. Allow to air dry thoroughly before reassembling.

Pressure Washer/Carpet Cleaner: In cleaning solution chamber, fill with water and add 1 drop of Sal Suds. Add 1c. (240 mL) vinegar to rinse water (optional). Use All-Purpose Spray on carpet spots (use sparingly).

Upholstery: Spray a wet (not dripping) cloth lightly with All-Purpose Spray. Gently rub cloth on the spot. Rinse area with a second wet cloth. Blot with a dry cloth to extract moisture. For large areas, use a carpet cleaner (above). Always spot test first.

Cars: ½ Tbsp. (7.5 mL) Sal Suds in 3 gallons (12 L) of water for exterior. Use All-Purpose Spray on interior surfaces and leather seats. Wipe with damp cloth.

Patio Furniture: ½ Tbsp. (7.5 mL) Sal Suds in a bucket of warm water. Wash with sponge, microfiber cloth or stiff brush. Wipe with damp cloth.

Additional Uses
• Camping gear
• Musical instruments
• Paint & makeup brushes
• Grills
• Lunch boxes
• Water bottles
• Kids clothing
• Bedding
• Doorknobs
• Cutting boards
• Refrigerators (inside & out)
• Glass vases
• Pottery
And so much more!

Not sure when to use Sal Suds or when to use Castile Soap? Head over to my blog post, Sal Suds or Castile Soap—Which to Use?

If you have SLS concerns, check out this blog post: There is no Cancer Risk from SLS (Sodium Lauryl Sulfate)

Further reading

Bar Soap Dilutions Cheat Sheet

Dilutions Cheat Sheet for Dr. Bronner’s Liquid Castile Soap

Sal Suds or Castile Soap – Which to Use?

GIY All-Purpose Cleaning Spray

Sal Suds cleaner shows >60% biodegradation after 28 days per ISO 14593

Download Now!

Sal Suds Cheat Sheet

Sal Suds, Sal Suds, How do I love thee?


Download Now!

Hoja de Dilución

Sal Suds Limpiador Multiusos Biodegradable


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Joy says:

I’ve read an article online regarding Sal Suds being used to remove scale (smother, dehydrate, or otherwise vanquish scale) on cactus plants as a substitute for chemical use. However, there seems to be no info on how to dilute with water. I use 500mls or (1) litre bottles for spraying. Can you help/advise please.

Lisa Bronner says:

Hi Joy – I am more familiar with using the Dr. Bronner’s Castile Soap for this purpose, but in principle, the Sal Suds would work as well. However, you need a far more diluted solution. For the Castile, I mix 15 ml in 1 liter of water. For Sal Suds, I would do 5 ml. Apply morning and evening until infestation clears. If these are small plants, you could even dip them in the solution.

Heather says:

Hi –

We just installed quartz countertops and were told to clean them with soap and water. We have hard water from our well. I read the article where you explained the difference between Sal’s Suds and Castile Soap and it sounds like using Sal’s would provide a better result but is Sal’s safe like soap would be?


Lisa Bronner says:

Hi Heather – Sounds gorgeous! Yes, the Sal Suds would be an excellent option. You want to keep the pH of your cleaning solution near neutral, and the All-Purpose cleaning spray listed on the Cheat Sheet, which is 1 Tbsp. Sal Suds in a quart of water would have a neutral pH.

Bailey says:

Hello! What is the shelf life for the all purpose spray? How long is it good in the bottle after made?

Lisa Bronner says:

Hi Bailey- The typical shelf life is about a month. If it is smelling “off” to you, then dump and remake. If you go through it rather slowly, make smaller batches so it doesn’t sit around.

Sue says:

Hi, Lisa…I’m excited to use your Sal Suds product for the first time. I see that you have on your list that it can be used to wash painted walls. Would your directions for walls also be the same if I’m cleaning them just prior to repainting them? Is the spray and wipe method enough to remove any residual, or do I need more of a rinse? Thank you!

Lisa Bronner says:

Hi Sue – I am so sorry for my delay in responding. Your project may well be past. Cleaning walls in preparation for painting depends upon how grimy they are, but I do think Sal Suds is up to the task. Normally, I use the All-Purpose Spray (1 Tbsp. in 1 qt. water) for washing painted walls. If there is a lot of build up on the walls, you may find that you need a stronger concentration to get all the grime, upping the Sal Suds to 2 Tbsp. If you use the regular dilution, a damp cloth sufficiently rinses it. With the higher concentration, you may find that you need to go over it twice.

ThreadsGuy says:

This is a great cheat sheet for those of us who are trying to go green with our laundry detergent. I have been using this guide for a while now and it has really helped me to save money.

Kim says:

Lisa – can I just pour sal suds into my dish liquid pump by my sink and use for cleaning dishes or do I have to mix with water and make a spray?

Lisa Bronner says:

Hi Kim – You can definitely put it in your sink=side pump for easy use.

Jennifer says:

I see the recommended use and direction for washing floors, but these are for the wringing style mops.

What about the ones that have a refillable solution container for using your preferred cleaner? Could I scale down the ratio provided, use in the spray mop container, and be ok? Obviously one shouldn’t over saturate the floors, but beyond that, could it work?

Lisa Bronner says:

Hi Jennifer- I cover this in a specific mopping post, but your comment reminds me I should add those instructions here as well. Add 2 tsp. (10 mL) Castile Soap OR 1/8 tsp. (.6 mL) Sal Suds to a quart (1 L) of water (scale back on the soap if using less water). Combine this solution in your spray mop bottle. Dampen your mop with plain water. Squirt or spray the floor and mop over with the mop. Rinsing should not be needed, but if you see bubbles, go over the floor again with plain water. If you need to remove the list of your spray mop container, try this tip: Fill a small saucepan with 2-3” of water and bring it to a boil. Once it’s reached a boil, remove it from the burner. Taking care not to burn yourself, hold your empty spray mop bottle upside down in the water with the lid fully submerged for 90 seconds. Using a pot holder, give the lid a firm but short twist and the lid will pop off. Clean out the bottle with hot water and a few drops of Sal Suds or Castile Soap. Rinse.

Lisa Bronner says:

Hi Rajive- Unfortunately, plastic shower curtain liners aren’t meant to be cleaned. They’re made with the intention that when they’re cruddy, you throw them out. However, fabric liners are meant to be washed and clean up quite nicely in the washer. Add 1/2 c. of baking soda to the wash cycle and 1/2 c. of vinegar to the rinse. The term “fabric” is a little misleading with the washable ones, because they’re made out of polyester, but they’re still eminently more washable than the plastic ones. You can hand wash them as well. If you are using a machine, add the vinegar to the fabric softener compartment, so that the machine releases it into the rinse cycle. Also, to prevent mildew, be sure the liner can dry freely, by pulling it to the outside of the tub and separating the decorative one from it so that it has a chance to dry. In the long run, the fabric shower curtain liners stay in good shape for longer even though you have to wash them more frequently.

Lisa Bronner says:

Hi Mike – Although the ingredients in Sal Suds are better than what is in conventional hand soap, we don’t recommend it as such. It does not have the nourishing best for skin ingredients that our Castile and Sugar Soaps have. The Castile makes a great foaming hand soap with a dilution of 1:3 with water. The Sugar Soap is ready to use as is in a pump.

Tamara says:

We love Sal Suds and recommend it as one of very few products necessary for non-toxic house cleaning. We send out a box to our students each month, and on the month we talk about non-toxic cleaning, we would love to include a sample size of Sal Suds. I’m wondering if Dr. Bronner’s has ever thought about offering sample sizes for introducing the product to new people. Thanks! Tamara (Good Earth Herb School)💜🌿

Lisa Bronner says:

Hi Tamara – Thanks so much for sharing the wonders of Sal Suds! I think it’s pretty great, too. As you know, we do not currently have a sample size of Sal Suds available. The smallest size is the 16 oz. We’ve gone back and forth about samples, partially because of the packaging. It’s a great idea, though, in order to introduce people to Sal Suds and thereby improve their lives! I will definitely share your suggestion with our team.

beverlee says:

I have a self cleaning oven, but the temperature is too hot to use it for the period of time required. Is there a formula for oven cleaning? Will it leave a residue?

Lisa Bronner says:

Hi Beverlee- An All-Purpose Cleaning Spray made with Sal Suds does a great basic clean. Add 1 Tbsp. Sal Suds into a quart of water into a spray bottle. Spray and wipe with a damp cloth. This works for countertops, sinks, door handles, and so on. Sal Suds is exceedingly clean rinsing and leaves no residue behind. When your oven needs a heftier clean, I have a few non-toxic methods to recommend using a baking soda paste or an oven steam with cut lemons and hot water. Check out my article on cleaning stoves and ovens ( for the different options.

Melissa says:

If I were to dilute Sal suds in a 16 oz or 8 oz bottle would that need a different dilution from the dilution of the 1L bottle? If so what would the measurements be?

Lisa Bronner says:

Hi Melissa – I apologize for my delay in responding. I’m not sure what dilution use you’re looking at, but a 16 oz. bottle is roughly half of a liter (it’s half of a quart), so you would want to use half the amount of Sal Suds that is recommended for a liter bottle. For an 8 oz. bottle, you would want to use 1/4.

Chelsie says:

I’m wanting to switch to Castile soap for our laundry but then stumbled across Sals Suds. Do you have a suggestion which would work better for a HE commercial washing machine? We also have hard water, unfortunately. I’d appreciate any input, thanks!

Lisa Bronner says:

Hi Chelsie- Both work equally well in HE washing machines, but Sal Suds does perform slightly better in hard water conditions. It’s also slightly better on whites and a more affordable option for laundry.

Lisa Bronner says:

Hi Rose- Both Castile Soap and Sal Suds work great for handwashing dishes, but unfortunately, we do not recommend either in the dishwasher. They bubble up too much and can leak through the seams. Take a look at the Environmental Working Group ( website, which ranks products by ingredients, environmental impact and such. It’s a very helpful resource for finding products.

Karena says:

I use just a little bit (maybe 1/2 tsp?) of Sal Suds mixed with water in my “pre-wash” compartment – I’ve never had any noticeable sudsing issues, and it really seems to help get everything sparkling clean.

Camille Picininni says:

Please clarify, if I have a front load washer, how much Sals Suds do I use?

*Please tell me the quantity for suds diluted with water as well as if you are using it straight from the bottle.
*Lastly, because I have a front load washer, do i put the suds in the top dispenser or do I open the front door and disburse directly into the drum?

Lisa Bronner says:

Hi Camille- In an HE machine, use 1 Tbsp. Sal Suds straight from the bottle in the soap dispenser just as you would conventional laundry detergent. The water running through the soap dispenser dilutes the Sal Suds for you. For extra grubby loads – like towels or rags – I like to add baking soda for an extra boost. In an HE machine, sprinkle 1/4 cup directly on fabrics before starting the cycle.

Bridget says:

I’m a newcomer to Sal Suds. I’ve used Dr. Bronner’s Castile Soap for decades (lavender) for bathing, but had used another plant based soap for dishes, etc. My skin, specifically my hands, cannot handle the chemicals in other products anymore. The plant based dish soap I’ve been using for quite some time is no longer available here on the island, and I’d read this “cheat sheet” for Sal Suds and went in search.

I honestly had to stop my cleaning with Sal Suds and come back to this post. I’m a bit of a clean freak. I just tried the Sal Suds (approx 2 tsp in a 1 liter bottle of water–I couldn’t recall the measurements here) and proceeded to start cleaning my kitchen. First task was to clean my glass-top stove. WOW. It didn’t appear to be very dirty, but had a few marks on it. I was amazed at the outcome of a spray or two of Sal Suds and a polishing with a microfiber cloth. AND the cloth come away with much more grime than I even knew existed!! Then, I went searching for more areas to use my Sal Suds solution on….the air fryer looked like new when finished. Tile counter tops sparkle. Fridge is spotless.

I’m sold. I am soooo SOLD!

Excuse me while I get back to it….I’m certain there’s more invisible dirt around here and Sal Suds and I are going to find it!

Lisa Bronner says:

HI Bridget – Just saw your post from April. Woohoo!! I’m sure Sal Suds has found all the hidden dirt by this point!

Lisa Bronner says:

Hi Jeanelle – You can definitely wipe your houseplant leaves with a dilution of Sal Suds to remove any dust. Use 1 Tbsp. Sal Suds in a quart of water. Spray the leaves and then wipe off with a damp cloth. It would not be best to leave more Sal Suds than this on plants, though. It would end up attracting dirt.

Susan Bohner says:

Can you use it in a dishwasher and how much per load . And will
I also have to add vinegar for the spots ?

Lisa Bronner says:

HI Susan- Unfortunately, no. Sal Suds is not recommended for the dishwasher. Dishwasher detergents are designed to be no-suds, and as the name implies Sal Suds is too sudsy. The Environmental Working Group ( ranks products by ingredients, environmental impact and such. It’s a very helpful resource for finding products.

Lois G. says:

We had new vinyl “linoleum” flooring installed in our kitchen. The installer said to use a “PH neutral” cleaner. Is Sal Suds PH neutral?

Lisa Bronner says:

Hi Lois – At the recommended dilution for floors of 1 tsp. Sal Suds to 1 gallon water, the solution is pH neutral.

Lisa Bronner says:

Hi ShirlAnn – No, this isn’t recommended. While there is no reaction between citric acid and Sal Suds, as there would be with the Castile soap, the acidity still interferes with Sal Suds effectiveness. What are you wanting to do?

Lisa Bronner says:

Hi Joy – I have used Sal Suds to get rid of mold and mildew. A couple different occasions that have come to mind: wet laundry that was left in the washer over the weekend (ahem); the corners of my shower, the canvas awning of a camper. Generally a combination of Sal Suds, some scrubbing with baking soda for laundry or a stiff brush, and hot water if possible. Sometimes mold causes stains in grout, which can be bleached by spraying with hydrogen peroxide and letting it sit for 10 minutes before rinsing. Spot test this in an inconspicuous spot first, though, to be sure it does not bleach your tile.

Jamie says:

What’s the best cleaner solution and method for a shower surround and hard water?

Lisa Bronner says:

Hi Jamie – There are a couple options, so choose the one you like best:
1. Simplest (and what I mostly use): All Purpose Spray with either the Sal Suds or Castile. Spray surfaces and scrub with a stiff brush. Add a sprinkle of baking soda if you need more scrubbing action. Rinse with water.
2. Step it up: GIY Soft Scrub which does a great job of clinging to vertical surfaces and already contains baking soda. Squirt it on, scrub, and rinse.
3. Hard water build up: If you have a lot of residue from very hard water or irregular cleaning, and if your shower is not a soft stone like marble or travertine, you can use a spray of vinegar to help cut through the residue. Spray the surface with a 50/50 vinegar and water spray and let it sit for 5-10 minutes. Scrub it and rinse away.

You can ready more about these strategies in my article Scum, Scum, Go Away.

Cyndi says:

Does the Sal Suds product need to be rinsed if used for mopping in tile floors?

Lisa Bronner says:

Hi Cyndi- No, at this dilution there’s no need to rinse.

Denise says:

Are we able to mix Peroxide with Sal Suds in a spray bottle?
Want to make a diy daily shower cleaner for glass shower & tiled walls & floor and have seen Peroxide helps fight mold. We live in FL and it can be an issue even with bath exhasut fan

Lisa Bronner says:

Hi Denise – Mixing hydrogen peroxide and Sal Suds is not a good idea. Hydrogen Peroxide, which works by releasing its extra oxygen atom, kicks off that oxygen really quickly when mixed with Sal Suds, or any soap or detergent. You would find that it would create an quickly expanding foam. You can see what I’m talking about at about th 20:50 mark of this video I did Instead, use the hydrogen peroxide separately from the Sal Suds. Clean the surface as best you can first to remove any debris. Then spray it with the hydrogen peroxide and let that sit for 10-20 minutes and then rinse it. Because hydrogen peroxide is a bleaching agent (a key component of oxygen bleach), be sure to test it on an inconspicuous spot of the surface before fully using it.

Martyn says:

We love using Sals Suds for dishwashing. I’ve mixed up a container with your recommended amounts of 1/2c sals suds to 1 quart of water. It works well, but we find it too thin (watery). Can you recommend a way to thicken it?

Lisa Bronner says:

Hi Martyn – I’m glad the Sal Suds are working well for dishwashing. While there is not a simple way to thicken the dilution in a squirt bottle, you could put it in a foaming pump dispenser to get a nice foamy texture.

Ada says:

Hi Lisa,
In your Aug. 6, 2021 post, you mentioned using vinegar and Sal Suds together but on your February 12, 2022 post, you said there’s no benefit to combining the two. Can you clarify? Thanks. PS-Love your products!

Lisa Bronner says:

Hi Ada- I’m glad to see you reading so closely! In the past have recommended a combo of Sal Suds and vinegar, but we recently did some formal testing and learned that vinegar in fact reduces the cleaning power of Sal Suds. They are both excellent cleaners, but best to keep separate.

Lisa Bronner says:

Hi Kathryn- Unfortunately we do not recommend our soaps in the dishwasher. They bubble up too much and can leak through the seams. The Environmental Working Group ( ranks products by ingredients, environmental impact and such. It’s a very helpful resource for finding products.

Jordan says:

This looks excellent! I feel confused, how can Sal Suds be used both for cleaning dishes, tubs, etc. and also for cleaning the exterior of a car? It is my understanding that dish soaps are abrasive and cannot be used on cars because they remove the wax coating over time. I’d really like some more clarity please. 🙂

Lisa Bronner says:

Hi Jordan – I do apologize for not seeing your question earlier. There is a ton of marketing messaging out there to convince consumers that they need different products to clean every surface. That sells more product. HOwever, if you have a product that is an effective cleanser with nothing harsh or abrasive, and leaves no residues AND biodegrades, there is no reason you can’t use it everywhere. Standard dish detergent may be too harsh for cars – I’m not going to make a blanket statement about them, but I suspect that would be the case. However, Sal Suds does not have any abrasives or enzymes in it that might be found in dish detergents. It is just a simple cleanser. It will not eat your car wax. It will only take away the dirt and grime. It will also do everything I’ve listed here. The best advice is to give it a try and you’ll see what I mean. To get feedback from others who use it, check out the conversations on my Facebook page, if you use the site. Search for @GreenwithLisaBronner.

Elaine says:

I am a huge fan of Dr. Bronners but recently noticed palm oil in the label. Shocked I didn’t pick up on this year’s ago. Will this change given the damage our use of palm oil has done to the wildlife who need these trees to survive?

Lisa Bronner says:

Hi Elaine- Thanks for your question and for reading the labels so carefully. This is such an important issue and a concern that we share. The vast majority of palm oil used in food and body care products is sourced from southeast Asia with devastating results. I am happy to say that there are ways to produce palm oil that do not have this impact. In searching for options, our company partnered with small scale farmers in Ghana and founded Serendipalm, a sister company, that is producing palm oil in a way that promotes health not only to the environment and farmers, but also to the communities around it. Take a deeper look into how we source our palm oil:

Linda says:

Would you recommend Sal Suds or Castile soap in an RV washer, 2-15 lb capacity, and how much? It is front load, washer/dryer combo, and I believe it is HE.

Thank you.

Lisa Bronner says:

Hi Linda- An HE washing machine uses about 12 gallons per load, so I would start with the same amount of Sal Suds – that is, 1 Tbsp. – for a large load, and scale down for smaller loads. 1/2 Tbsp. for a 6-gallon load, and so on. If using Castile Soap, use 1/4 cup for a large load or 2 Tbsp. for a 6-gallon load. With Castile be sure to use 1/2 cup vinegar in the rinse cycle for a large load. Let me know how that goes.

Anton says:

Los Angeles Hillside. Lovely flowering vine and other plants attacked by tiny yellow aphids. Please tell me the best mixing ratio for this from your experience. Thank you.

Lisa Bronner says:

Hi Anton- An insecticidal soap made of 1 Tbsp. Castile Soap (any scent) in a quart of water should do it. Spray plants twice daily in the cool of the day until infestation clears. It sounds like you’re covering a large area, in which case this can be used in a 1G multi-use sprayer with a hose attachment. Check out my blog post,, for a deeper dive.

Teresa says:

Just used Sal Suds for the first time. Read all the good reviews and product description on your site. Unfortunately I really get a “burnt”, rather chemical sensation on my skin after dealing with it (mixed as directed for dishwashing) as well as after hanging laundry washed with it. Seems like it irritates the skin. Anybody else experiencing this?

Lisa Bronner says:

Hi Teresa- I am so sorry to hear of the sensation you have been feeling when using the Sal Suds. I assure you this is not common as Sal Suds is both mild and clean rinsing. It sounds like you might be sensitive to an ingredient, and should consider not using it, or using it with gloves to protect your hands. So that we can verify there is nothing amiss with this batch, would you look for the lot codes (2 sets of numbers etched into the plastic bottle, just below where the label ends), and confirm the size of the bottle and name of store of purchase, and email that to me at or to the Dr. Bronner’s Customer Service Team at Our Unscented Castile Liquid Soap is an even milder alternative to Sal Suds, made with organic plant oils, and can be used for almost all the same uses as Sal Suds.

Joanne says:

Can I dilute dr bronzers to use in my dish soap dispenser that is part of my kitchen sink?

Lisa Bronner says:

Hi Joanne- Yes, a dilution of half Sal Suds, half water works well for this.

Tracey says:

This is the BEST cleaner! I use it on windows and its totally streak-free. I use it to wipe down most surfaces in my home. It’s the only thing that doesn’t irritate my lungs. LOVE IT!!!

Lisa Bronner says:

Hi Tracey- Excellent! I’m glad to hear it!

Dorothy says:

I’m looking for a disinfectant for my bathroom and around the house. Is there something that I can dilute and spray?

Lisa Bronner says:

Hi Dorothy- There is distinction between cleaning and disinfecting. In general, all surfaces need cleaning, but not all need disinfecting. Soaps or detergents, including Sal Suds and Castile Soap, clean by removing. They remove germs, dirt, oils, and other debris from surfaces. Here’s my deep dive into how soap works Disinfectants clean by killing. They are biocides. Unless someone is sick, I do not regularly disinfect my surfaces. This is per the CDC’s recommendation ( as unnecessary disinfecting can reduce the efficacy of disinfectants and unnecessarily expose us to more intense chemicals. However, when disinfecting is called for, either alcohol between 60%-90% spray surface and let air dry – or Hydrogen Peroxide, if bought at the standard pharmacy concentration of 3%, diluted with water at a ratio of 1:5 – let sit for 1 minute. Alcohol smells worse but hydrogen peroxide can bleach some surfaces, so spot test before deciding which to use first.

Daniel says:

I live in the Pacific Northwest and I am obsessed with the smell of fir trees and the forest. This smells like that. Can I use it as body soap in the shower, or will it slowly melt my skin off?

Lisa Bronner says:

Hi Daniel- I hear you! I too enjoy the scent of Sal Suds. However, it is our all-purpose household cleaner and because it can be so drying to skin, we don’t recommend it for body care. What would be nice though is to create your own pine-scented Castile Soap by adding fir, pine, or spruce essential oils to the Unscented Castile. Start with about 1 tsp. for a quart of soap, and add more if you’d like a stronger scent. If you try it and find a combo you like, please let me know.

Lisa says:

Hi there! I just used a 50/50 combo Dawn Dish Soap + Vinegar to successfully clean soap scum off my glass shower doors. It worked well, but the smell was awful (I’m used to a vinegar smell, so I think it was the Dawn). Would it make sense to try a 50/50 combo of Sal’s Suds and vinegar next time for similar results? Thanks so much!!

Lisa Bronner says:

Hi Lisa- Vinegar does not react with Sal Suds in any way, however, we recently did effectiveness testing on this one because I get a lot of questions, and Sal Suds mixed with vinegar is less effective at cleaning than Sal Suds alone. Diluted vinegar alone cleans soap scum. Dilute one cup of vinegar in a quart of water and spray it on the scummy surfaces. Let it sit for about 5 minutes, but not long enough for it to dry, and then rinse it away with very hot water. A GIY (Green-It-Yourself) Soft Scrub with baking soda, vinegar, and either Sal Suds or Castile Soap scours soap scum away. Here’s the recipe:

Lena says:

Can you mix sal suds with vinegar in a bottle? I read that you can’t mix vinegar and Castille soap because the mix of acid and base will unsaponifies the castille soap (reverses the soap making process).

Lisa Bronner says:

Hi Lena- While vinegar does not break down Sal Suds as it does the soap, it does decrease the cleaning power of Sal Suds. There is no benefit to combining them.

Ashley says:

Wondering if Sal Suds is safe to use to wash down jackets or sleeping bags with verses a specific down wash detergent. Thanks!

Lisa says:

Hi Lisa. I am having trouble with my dilutions.

I am using sal suds for an all purpose spray and feel like my dilutions are off for this. I broke it down from your dilutions above for a 16oz bottle but I think I still have it wrong. Should I being using distilled water with this?

Also, I use castile soap for hand wash but there are always little films floating within. I always mix this with distilled water, as I know castile soap reacts with hard water. Am I adding too much castile soap? I am using a 16oz bottle for this as well.

What are your suggestions for dilutions for both of these in 16oz. bottles? What is the shelf life for both once mixed also?

Thanks for your time. Love your products 🙂

Lisa Bronner says:

Hi Lisa- It’s great to hear our products work well for you! A 16oz bottle of Sal Suds All-Purpose Spray would use 1/2 Tbsp (or 1.5 tsp.) Sal Suds. Regular tap water is just fine with Sal Suds as it doesn’t react with the minerals present in hard water in the same way Castile Soap does. I’ve never had a bottle of this solution go bad, but generally use within two or three months.

The dilution for a foaming hand soap dispenser with Castile Soap is 1 part soap to 3 parts water – or roughly 5oz soap and 10oz water in a 16oz dispenser. If this seems too concentrated, dilute further to 4oz soap and 12oz water. Many customers prefer to use distilled water because it makes for a clearer solution with the Castile Soap. When using water with any hardness, you will see the cloudy, though harmless, precipitate in the solution. For shelf life, follow your nose – if it is smelling off, then dump and remake. If you find you don’t go through it fast enough, mix-up a smaller batch.

Lisa Bronner says:

Hi Frances- The Sal Suds is not designed for automatic dishwashers, and I have not had success in my personal experiments with it as such. In general, it foams too much for the way the machines work. With my hard water, I also found a film on my glassware. However, I also know that many of my readers have used it successfully as such.

Tania says:

Hi Lisa,

I love Dr. Bronner’s castile soap and sal suds! I have used castile soap for years and make our foaming hand soap with it. I discovered Sal Suds through Grove Collaborative and have decreased the amount of cleaning solutions I use around the house. I know that once diluted Sal Suds all-purpose spray is good for a couple of months. What is the shelf-life of the undiluted Sal Suds once I open the bottle?

Lisa Bronner says:

Hi Tania- It’s great to hear our products are working so well for you! Sal Suds has a guaranteed shelf life of 24 months once opened. There’s actually a symbol on our labels, and others’ on the market, that looks like an open jar with a number in it. This indicates the product’s shelf life once the product is opened. (I have to admit, it wasn’t that long ago that I learned this little nugget!) says:


I have another question, since vinegar can be combined with sal suds is it possible to use citric acid instead?

Lisa Bronner says:

Hi Yameirae– I haven’t tried doing this, but thinking theoretically, you should be able to swap citric acid for vinegar. I looked this up in the book Putting Food By. To get the 5% dilution common to most household vinegar, you would need to dissolve 2 Tbsp. fine citric acid in 2 cups of water. Then follow the dilutions for vinegar.

About Lisa Bronner

My grandfather was Dr. Bronner, my family makes soap, and I share ways to use it plus tips on greener living.

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