Natural Coconut Oil Soap Recipe

Although I often use melt-and-pour soap, today we are going to try our hand at using lye to make this all natural soap. I will take you step by step so you know you can do this yourself at home!

Since this is one of our recipes with lye instead of melt-and-pour, I’ve chosen a very simple recipe, adding only coconut oil.  I will be using 2 shapes for mine. 

It’s natural (well, as natural as you can get since every soap must contain lye, so no soap is entirely natural) coconut oils soap recipe

the final product is here


  • 0.62 L Distilled Water (about 21 oz.)
  • 268 gram of Lye (approx. 1-1/8 c)
  • Coconut Oil 1.53 kg (54 oz) - If yours is solid, you will want to melt it into a liquid. I recommend leaving the jar out in the sunlight, or putting it next to the radiator. 
  • Plastic bucket
  • Plastic or metal spoon
  • Thermometer 
  • Two molds (I chose square one, round one and a heart shaped one, but you can chose any you like. Basically, this recipe will be enough for like…25 - 30 normal sized soaps (square ones).

Also, I need to warn you – this is not a melt-and-pour soap recipe, so you cannot substitute ingredients. Each ingredient has its purpose and if you would like to use oil – you’ll have to calculate a completely different ratio of lye and distilled water.

If you want different oil, or a smaller batch you can use- soap calculator and calculate the ingredients you will need.

Step by Step Directions for Coconut Oil Soap Recipe

  • Your 1st Step :– Put on your protective gear. No, I’m not kidding, you actually have to wear all that unless you want burns on your skin or in your nose.
Put on your protective gear
  • Your 2nd Step :– Take your bucket and pour in the distilled water
pour in the distilled water

This is very important – Always mix lye into the water, never water into the lye – that can produce some nasty eruptions and chemical burns. So, take your lye and slowly pour it into the bucket of distilled water.

take your lye
  • Your 3rd Step :– Now comes the chemical reaction. The mixture will become hot, and you’ll see a bit of fog or smoke coming out of it (do not breathe that in), but keep mixing a little.
mixture of lye and water
  • Your 4th Step :– Wait until the mixture comes down to 37,8 Celsius (100°F) - use the thermometer to check.
  • Your 5th Step :–  Pour the coconut oil into an empty pot or a big bowl.
Pour the coconut oil into an empty pot
  • Your 6th Step :– Take the lye/water mixture (after it had cooled down to the appropriate temperature) and slowly pour it into the liquid coconut oil.
  • Your 7th Step :– Now mix the mixture until it comes to trace.

What does trace mean?

Basically the mixture must resemble the texture of a freshly cooked pudding. It can’t be completely liquid like when we started, it has to be a bit thicker, but not too thick – or you’ll have problems fitting it into your molds. If you want to speed up the process, you can use a hand mixer. 

  • Your 8th Step :– Pour the mixture into the molds. As I said, this soap will be as natural as it can get – so no essential oils or coloring.
Pour the mixture into the molds
  • Your 9th Step :– Put some paper or plastic wrap over the molds, and then cover them with a towel. It helps the soap not to cool down too fast and more evenly, so it helps with air bubbles and that ashy coating that can come out at the bottom. Leave your molds covered for 24 – 28 hours.
cover them with a towel

Tiny hint – always wash your molds before you pour the soap into them 

  • Your 10th Step :– When you uncover the molds, take the soap out and put it somewhere where it won't be disturbed so it can cure for at least 6 weeks. 
the final product

Long, I know. But you have to know that soaps made with lye from the scratch are different from melt-and-pour in a lot of ways.

Happy Soapy to you.....

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