How to Make Lye Soap

Lye soap is made from mixing lye and fat together with water as the catalyst. Homemade Lye soaps are very popular today because commercially made soaps are not soaps at all – they are detergents that usually contain chemicals such as alkaline, isopropyl alcohol, DEA, Triclosan and BHT that leaves your skin tight, dry and sometimes itchy.

Lye soaps are all natural and known to ease certain skin problems like eczema, acne and psoriasis. Where glycerin is taken out of commercially sold soaps, it is preserved homemade lye soap so that it effectively moisturizes the skin.

Making homemade lye soaps is not only a popular hobby today, but a great business opportunity!


You can combine any kind of oil or fat with lye to make your soap. Keep in mind, should you choose to use animal fat, make certain that it is clean, contain no salt, not rancid and free from solid particles.
Using animal fats such as lard or tallow will result to a denser soap. Natural coconut plant oils will produce a rich lather and olive oil will give silky and fine bubbles that are very calming to the skin.


Lye is the chemical name for sodium hydroxide which is a very strong base and produces heat and fumes when mixed with water.  Therefore it is important that you make your soap outside so that there is no danger of inhaling the fumes.  Also, carefully read the package instructions and follow them to the letter.

What you need

Basically, you will need just three ingredients – lye, water and oil.  If you want a more lavish lye soap, then you can certainly add scenting oils, coloring dyes and other natural ingredients such as orange peels, rolled oats, dried flower petals, etc.


Before you begin, make sure you put on your goggles, apron and gloves.

  1. Place the plastic container on the scale.
  2. Add water into the container then mix carefully in lye in 1 is to 3 ratios. For instance, for 10 ounces of lye, you will need 30 ounces of water. Keep in mind, add lye to the water – not water in lye.
  3. Let the water and lye mixture cool down, ideally for 1 day.  
  4. Measure the oils and lard then pour them into an enamel or stainless steel container.
  5. Heat the container on the stove slowly until lard melts and create an even mixture.
  6. Stir the mixture gently and with the thermometer, check if the mixture has reached between 120 to 130 degrees Fahrenheit.
  7. Take the lye mixture and add in the fats and oils mixture slowly and carefully, mixting while pouring. 
  8. Immediately pour your liquid soap mixture into plastic molds and let it cool down, ideally for 24 hours.
  9. You can mix in anything you want like rolled oats and grated lemon peel which will be great for oily skin or mashed papaya fruit wich is great for removing skin blemishes.
  10. Remove from molds and pack attractively.

Once you have mastered the soap making basics, it is fun to make your own soap recipes.  The possibilities in making homemade soaps are endless – it only takes a wild imagination!
Visit and learn in easy step-by-step instructions how to make homemade bath products using a variety of different methods including melt and pour, microwave method, cold and hot process methods.

This site even shares with you the cheapest sources for those hard to find supplies - so you won't waste time looking for the materials you'll need and especially if you want to sell your soaps, you won’t waste money by purchasing your supplies at expensive craft stores so your soaps will be reasonably priced!

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