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Out of Stock until December 12th.

Potassium Hydroxide:
Used for making Liquid Soap,  each container has 2 pounds by weight. Potassium Hydroxide, also known as potash, lye, or KOH, is the chemical that induces saponification with fats and oils to create that magnificant thing called liquid soap! Please be sure to educate yourself on the safety precautions and proper handling of Lye before using this ingredient.

Making Liquid soap is a little different than making bar soap. Check out our Online E-book 'Liquid Soapmaking' for everything you need to know to make liquid soap successfully.

Please Note: As of July 2015, our potassium hydroxide is 90% purity.

 Storage: Potassium Hydroxide is extremely hygroscopic (attracts moisture) so be sure to always keep it in a sealed container in a cool dry place. If left out, it can attract enough moisture from the air to turn completely liquid!

NOTE: When you order this item you must agree to the Hazardous Materials Waiver. This item may only be shipped via Ground Only to the continental (48) United States.

Botanical Name:   Potassium Hydroxide
Common Name:  Potassium Hydroxide 

Safety and Handling: Visit this post on the Soap Queen Blog for information on how to safely use Potassium Hydroxide.


Average Rating:
(based on 5 reviews)

Showing 5 Reviews:

Verified Purchase
by Dixie
on 5/16/2015
This will be my 2 nd order of this product! I didn't do so will with my 1st batch. But that's how I learn. The what I did wrong ? After my 2nd batch and did a little research (we all should) I did c/p for almost 4 years now and have been doing well. So I wanted to give it a try and yes they do have recipes for wonderful results . When baking cookies you don't always get it right the 1st time .my customers love the liquid soap I am now proud to put up for sale .My family loves them too .figuring out the nuteralizing was hard for me at 1st .salt doesn't work for me I have found by not adding tp much water in the 1st place is better than trying to thicken later. And yes I use a pH tester.just to be on the safe side.Thank you BB!
Verified Purchase
by Leigh
on 4/5/2015
90% vs 97%
I couldn't find the purity % on the website or the container either so I assumed it was 90%. When entering a recipe into a calculator, I used "90%" pure. I'm wondering if my recipes have been affected. Brambleberry please put the purity % of KOH on your website.

Terah from Bramble Berry replies...
Hi Leigh! Our Potassium Hydroxide is 97% pure. I'm worried if you calculated your recipe based on 90% purity that it is now lye heavy. You may wish to use our lye calculator in the future which has been calibrated to work with our products specifically. I will email you personally to help troubleshoot!

Verified Purchase
by Colin
on 3/1/2015
KOH Purity %
Great product. It should however contain the KOH purity % in the product description, AND most importantly, on the bottle itself. I double checked my bottle, and it's not listed. Knowing this % IS important to know, especially when running recipes, and formulating recipes through a lye calculator. Again, this is a great product, but I'm docking it 1 star because of not listing the purity %... Come on Brambleberry. With as much as you push safety and running recipes through a lye calculator, this should really be a no brainer... Colin

Reply from Bramble Berry
Hi Colin! I'm so glad you love our Potassium Hydroxide! Though, you're completely right the KOH purity percent is not listed on the bottle. Our Potassium Hydroxide is 97% pure. I will email you personally to discuss this further!

Verified Purchase
by AJ
on 10/15/2014
First time using, mixed results
Mixed results and disappointed that BB doest offer even one free recipe for using this product. Heres a tip from BB (tip was given on the Castile soap concentrate product I for page) that would have been helpful to include in product description for making liquid soaps, "Special Tip: You can also use .5 oz. table salt (very important it be plain table salt, just the cheap stuff) dissolved in 1.5 oz. distilled (warm) water to naturally thicken the soap prior to adding fragrance. We use about 12 ml of the salt solution in 16 oz. to get a very thick soap. Give it a try!" Had this tip been included I wouldn't have wasted money buying liquid crothix which did absolutely nothing to thicken my Castile soap.

Reply from Bramble Berry
Hi AJ! I'm sorry you were unhappy with the description on this product. This Liquid Soapmaking Online Video has step-by-step instructions, an easy recipe and tips for making liquid soap. Making liquid soap is a very in-depth and multi-step process that isn’t easy to show in a blog post or regular length video, which is we provide this Liquid Soapmaking E-Book and created a full length video to help people learn to make liquid soap. I'll be emailing you personally to discuss this issue!

by Daniel
on 8/17/2013
Lye description
The Lye description should contain the exact concentration of KOH in the container. It should also link to safety and mixing instructions.

Reply from Bramble Berry
Hi Daniel! Thank you for the feedback, we are always working to get as much information to our customers as possible and appreciate you taking the time to let us know what you would like to see on Bramble Berry's website!

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