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Lye safety and understanding how to handle it, is crucial in soap making. If you’re looking to make cold process soap for fun, as a hobby, to sell, or even for sensitive skin of some kind, you’re going to use lye.
Thus, understanding a little more about it, is important. So let’s dive into the topic of lye safety a little more, shall we.
We know, we know, safety! Boring, right?
Whether learning about safety is fun for you or not, it’s vital in the world of making soap.
Why you ask?
Lye, otherwise known as sodium hydroxide, just sounds like a scary couple words, doesn’t it?
Truth is, you probably don’t even know how often sodium hydroxide is around you. However, what you should know is that to be a cold process soap maker, you will work with lye. Frankly, you will work with it often!
So, let’s get the “scary stuff” out in the open, so we know exactly how to handle it. Furthermore, what to do if a problem arises.
In the definition of lye from Merrium-Webster, it states lye is a “solid caustic”.
Let’s take it one step further. Caustic means, “capable of destroying or eating away by chemicals” & “a substance that burns or destroys organic tissue”.
This stuff is used in things like paint strippers. If we get it on our skin (which is organic), or in your eyes, you can have problems if you don’t treat it.
Related Article: Cleanup & Safety Tips for Soap Making: Let’s Chat About it
We know what you’re thinking. Why are you starting off telling me I should make soap, and then telling me that lye is caustic. Well, because it’s the truth. You need to know that when you get into cold process soap making, you will deal with lye. So, you simply need to be safe when handling!
However, once you know the safety tips and feel comfortable with lye, you can truly make some of the most beautiful, skin enriching soaps you’ve ever had. Most importantly, it can be very controlled, and safe!
Let’s take it one step back and discuss the role lye plays in soap making.
Let’s for instance say you’re making 100% olive oil soap. This means the only oil you will use in your recipe is olive oil. (Keep in mind this is one of the few oils you can make a “good solid” bar, with only one oil).
The basis behind making a solid bar of soap is by combining oils and fats with a caustic solution. In this case, with lye. The result, once saponification occurs, is soap!
Why is this great?
It’s great because we can simply add any oils we want into a lye calculator. The lye calculator will then tell you the amount of lye you need to make the reaction occur, thus producing, a solid bar of soap. The reaction changes both substances, and in the end you’re left with NO lye!
Cool, huh!
Another term for this is saponification, like beforementioned. This is a fancy way of saying oils and fats that have been made into soap, after they have reacted with the lye solution.
Obviously, you’ll want to take into account properties of the oils you’re using as well. However, this conversation comes at a later time. This is the basic’s behind the reaction of making soap and why lye safety is paramount.
Related Article: What Are IFRA Guidelines and How To Read Them
Lye in your Eye(s): Rinse continuously with cold water (first) for 15-20 minutes, seek medical attention.
Dry Lye Spill: Carefully brush off the area. Wipe it with a wet rag/cloth.
Fumes bothering your breathing: Wear a respirator, N95, or work in a more well ventilated area.
Poison Control Number: # 800 – 222 – 1222
If you handle lye like we’ve talked about, you should never have a problem!
Remember, protect yourself and give yourself some space. Clear your area and make it a point to be as neat as possible.
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