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Sodium Hydroxide: LYE - for Soap Making. Sodium Hydroxide, or Lye, is the chemical that induces saponification with fats and oils to create that magnificent thing called soap! Our lye is now in flake form! This is a huge improvement because they don't cling to you and your tools due to static electricity like the pellets do. The flakes are a little less pure (97% instead of 99%) but this small variation does not make a difference in soap recipes and saponification rates.Please be sure to educate yourself on the safety precautions and proper handling of Lye before using this ingredient. Our Lye is 32 oz. by volume and about 27 oz. by weight.

How much lye do you need for your soap? Try our lye calculator.

NOTE:  This item requires you to agree to the Hazardous Materials Waiver*.  This waiver will be provided electronically when adding the item to your cart.

* Click here to read the Hazardous Materials Waiver.

Flashpoint:  This item will ship Ground Only regardless of the shipping method you choose at checkout. It cannot be shipped outside the lower 48 U.S. states or USPS.

Botanical Name:   Sodium Hydroxide
Common Name:  Sodium Hydroxide 


Average Rating:
(based on 45 reviews)

Showing 1 - 5 of 45 Reviews:

Verified Purchase
by Michael
on 11/18/2015
Best on the market
I have used many brands of Lye and this is the best by far. No more battling the "static cling" of other Lye. The only word of caution I have is be sure when you get close to the bottom of the jar to go OUTSIDE and pour it out as it tends to create a "dust" in the air due to the very small particles and the last thing you want to do inhale Lye dust.
Verified Purchase
by Michelle
on 11/6/2015
My go-to Lye
I've never had a problem with this product, and I've not been inclined to try others having been just that pleased with it. It is easy to work with, does not have a lot of dust - though as noted, if you're extra sensitive, a mask might be in order. I use mine under the kitchen fan hood just in case, and haven't had any problems.
Verified Purchase
by Katie
on 10/16/2015
These crystals are SO MUCH EASIER than the pelleted lye. The crystals don't stick to everything! It might take a little more stirring to get them to dissolve, but the ease of use makes it totally worth it. It does have a *teeny tiny bit* of dust, but I would hardly consider it dust or worry about it - it barely coats the bottom of the container you pour it into. I find the pelleted kind to be much worse that way...Great product, thanks!
Verified Purchase
by Cheryl
on 10/8/2015
Love it!
I used to use the beads, but this form is much, much better. The beads will fall all over the place, clump up, cling to your vessel, and are generally much harder to handle. But these flakes behave beautifully! Please Brambleberry, don't ever stop carrying them! :)
Verified Purchase
by James
on 6/27/2015
Try it, you'll like it!
I was weary at first, but I have used Brambleberry's Potassium Hydroxide in flake form for liquid soap with great success and I relied on Brambleberry's good name. There was no static cling, no crystals bouncing out of the cup and the soap is great. You do have to stir it longer to dissolve it, but that is a very small price to pay. I will buy this from now on. It is also less expensive (even WITH shipping) than crystal lye I purchase at the local hardware store.
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