Cold process soap is made by mixing oils with lye (sodium hydroxide) to initiate a chemical reaction called saponification. This method allows for greater control over the ingredients, resulting in a soap that retains the natural benefits of the oils used. Coconut oil is a popular choice due to its excellent lathering properties and moisturizing benefits.

Coconut oil soap has several advantages:

Hardness: Coconut oil produces a hard bar of soap that lasts longer.
Lather: It creates a bubbly, rich lather that enhances the cleansing experience.
Moisturizing: When used correctly, coconut oil soap can be hydrating and gentle on the skin.

However, it’s essential to balance coconut oil with other oils or use a higher superfat percentage to prevent the soap from being overly drying.

Here’s a basic recipe to make coconut oil soap:

12 oz. Coconut Oil (provides hardness and lather)
20 oz. Olive Oil (adds moisturizing properties)
4.5 oz. Lye (sodium hydroxide)
12 oz. Water (for mixing with lye)

Optional Additives

Essential Oils: For fragrance (ensure they are skin-safe).
Herbs or Oatmeal: For added texture and benefits.

Safety gear (gloves, goggles)
Digital scale
Stainless steel pot
Heat-proof container for lye mixture
Stick blender (optional)
Soap mold
Spatula

Step 1: Prepare Your Workspace

Ensure your workspace is clean and well-ventilated. Gather all your ingredients and equipment.

Step 2: Measure Ingredients

Using a digital scale, measure out the water and lye separately. Remember, never add water to lye; always add lye to water to prevent a dangerous reaction.

Step 3: Mix Lye and Water

In a heat-proof container, slowly add the lye to the water while stirring. Be cautious, as this mixture will heat up quickly. Allow it to cool down.

Step 4: Melt Coconut Oil

In a stainless steel pot, melt the coconut oil over low heat. Once fully melted, remove it from the heat and let it cool slightly.

Step 5: Combine Oils and Lye

When both the lye solution and oils are between 85°F and 110°F, slowly pour the lye solution into the pot of oils. Stir gently to combine.

Step 6: Blend to Trace

Using a stick blender or a spatula, mix the soap batter until it reaches a medium trace (the consistency of thick pancake batter). This may take a few minutes.

Step 7: Add Optional Ingredients

If desired, add any essential oils, herbs, or oatmeal at this stage. Stir to incorporate.

Step 8: Pour into Mold

Carefully pour the soap batter into your mold. Tap it gently to remove any air bubbles.

Step 9: Insulate and Set

Cover the mold with a towel to insulate it and let it sit undisturbed for 24 to 48 hours.

Step 10: Unmold and Cure

After the soap has hardened, remove it from the mold and cut it into bars. Place the bars on a drying rack or paper towel to cure for at least 4 weeks.

Can I Use Only Coconut Oil for Soap?

Yes, you can make soap using only coconut oil, but it’s recommended to use a higher superfat percentage (around 20%) to prevent the soap from being too drying on the skin (Lovely Greens).

How Long Does Coconut Oil Soap Last?

Coconut oil soap is very hard and can last a long time if stored properly. Allowing it to cure for at least 4 weeks improves its quality.

What is Superfatting?

Superfatting is the practice of adding extra oils to your soap recipe beyond what is necessary for saponification. This results in a more moisturizing bar of soap.

Making coconut oil cold process soap is a fun and rewarding project that allows you to customize your soap with your favorite scents and additives. By following this simple recipe and safety guidelines, you can create beautiful, natural soap bars that are perfect for your skincare routine or as thoughtful gifts. Enjoy the process of crafting your own soap and the satisfaction of using a product made with love and care!