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Suburban Homecraft

Education and Resources for Living Well with Little

Article: Making Soap

Try your hand at making soap

By Sophia Bennett

FOR THE REGISTER-GUARD

Nov. 12, 2015

If you’re planning to give DIY gifts this holiday season, making soap should be next on your to-do list. It’s fun, easy, and many of the necessary ingredients and tools are already in your kitchen.

Making soap can take less than an hour, but the finished product needs at least two weeks to cure. That means it’s a good idea to get started now. Here are some basic instructions from Kevin Prier, who, through his Suburban Homecraft sustainable living forum, teaches a variety of homesteading skills at local community centers and for private groups.

Along with several safety tips, he shared a few words about why people should try it. “You get a really nice bar of soap for about 75 cents,” he says. And, he adds, “It’s really satisfying making stuff yourself and saying, ‘I did that.’”

Simple ingredients

Traditional soap is made by combining fat (lard), lye and water. For “vegetarian soap,” olive and grape-seed oil are two of Prier’s favorites — rather than fat — because they’re widely available and relatively affordable.

Lye converts oil into soap. It’s a very caustic substance that seriously can harm skin. To avoid injuries, slowly add the lye to ice water — not the other way around. Lye heats water, and dumping the liquid into a bowl full of lye can cause the water to boil over.

The lye mixture can irritate your eyes and throat, so make soap in a well-ventilated area. If lye does come into contact with skin, pour white vinegar on it. The acid will neutralize the caustic lye.

It’s possible to add artificial colors to soap, but natural colorants work just as well. Honey turns soap yellow. The base of an aloe leaf creates a pink hue. Both of these products also will give the soap some additional skin conditioning qualities.

Essential oil adds a pleasant smell. The trick is to pour it into the soap late in the process, Prier says. “Lye doesn’t care what type of oil you add; it will turn it into soap.”

Many people fancy the idea of adding lavender flowers and other biological substances to soap, but Prier says the lye will turn them brown. Instead, “If you want something pretty, like a rose petal, dip it in paraffin and put it in the mold. The paraffin protects it and makes it stick.”

Slow cooker speeds process

Prier recommends starting the soap-making process with a visit to website TheSage.com. It has a calculator that determines the correct oil-to-lye ratio.

Next he pulls out his slow cooker. The appliance will heat the soap and make the chemical reaction happen faster. Once finished, simply clean the cooker — it’s only been used for soap, after all — and use it again for other cooking as usual.

The oils have different densities, so Prier measures them on a kitchen scale. They go into the slow cooker, followed by the water and lye mixture. “Oil and water don’t mix,” he notes. “The chemical reaction starts right away, but it only happens where the oil and lye meet.”

That’s where an immersion blender comes in handy. The mixture also can be stirred with a plastic spatula or non-aluminum wire whisk (lye dissolves aluminum).

Prier mixes intermittently until the soap reaches what he calls the “trace” or “pudding” stage. That’s when a line traced on the top of the mixture stays in place. He adds the essential oil, gives the thick substance a few more stirs, and the soap is ready to be molded.

Prier uses plastic hexagonal chemical measuring trays, available online, to give his soap a distinctive look. But it’s just as easy to pour the mix into a pan and, after hardened, cut into bars.

Writer Sophia McDonald Bennett can be contacted at hg@registerguard.com.

 

Blending oils and lye to create soap

Kevin Prier of Eugene, who teaches sustainable living, uses an immersion blender to mix homemade soap ingredients in a Crock-Pot. (Kelly Lyon/The Register-Guard)

 

 

Pouring the partially set soap into molds

Prier pours his freshly made soap mix into containers for setting and curing, which takes about two weeks. (Kelly Lyon/The Register-Guard)

 

 

 

Soap sets in molds for a unique shape

Rosemary honey soap setting up in containers. (Kelly Lyon/The Register-Guard)

 

 

 

Fully cured soap in about 2 weeks

Homemade soap takes an hour or so to blend, but requires about two weeks to cure. Basic ingredients are lard (or oil), lye and water. (Kelly Lyon/The Register-Guard)

 

 

Soap additive options include honey and essential oils

Prier used rosemary essential oil and honey from his backyard bees to make his soap. (Kelly Lyon/The Register-Guard)

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