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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 43 reviews)

Showing 1 - 5 of 43 Reviews:

Verified Purchase
by Lisa
on 10/12/2015
Breathing Lye Dust
I have to say I hate this lye. Every time I pour it I get lye dust. I have to use it outside and hope the wind does not blow to me. The end of the bottle is especially dusty. Breathing in lye dust is frightening. I will not purchase it again. Also, ED is less than half the price and works perfectly with no dust. It also dissolves much faster than this lye. I love most Brambleberry products, but I hate your lye. Sorry ladies.
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.
Verified Purchase
by Lina
on 6/24/2015
Loved this!!! <3
I used this to make my first batches of soap ever. It was easy to use, measure and was fast melting as far as I was concerned. I didn't have any dust when pouring. I do have two detractors one of which applies to all NaOH orders. First one is this has to be shipped via ground which seems to take forever especially when you're waiting on it to do anything. Second is that you can only get it here in 32 oz bottles. I'd like to be able to buy in much larger quantities.
Verified Purchase
by Beth
on 6/3/2015
I prefer the beads
This was the first lye I used, but when I ran out I wanted to try the beads to see which I prefer. While the flakes do have their positive points, I think I prefer the beads. Other reviewers have mentioned that there is more dust with the flakes, and I fully agree. When opening the container or pouring it, there is a noticeable cloud that puffs up that I haven't experienced with the beads. The flakes, due to their size, can also take a very long time to dissolve. When using water, this isn't an issue because you can see whether or not everything has dissolved, but when using milk it's impossible to tell if there are chunks of lye. It's easy enough to strain it once or twice, but it can be somewhat annoying. That said, the flakes feel "safer" before mixing with water. If you spill any, it's very easy to see where it ended up. If you need just a teensy bit of lye to add to your measurements, it's much easier to measure small amounts than it is with the beads.
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