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Mint, Lavender and Rosemary Cold-Process Soap Recipe

Writer's picture: Sara Jean IreneSara Jean Irene

Updated: Jan 17, 2024

This is the first batch of soap I ever made and it was an instant favorite. The ingredients in this Mint, Lavender and Rosemary Cold-Process Soap Recipe create a luxurious, moisturizing and gentle bar of soap that can be used from head to toe. The smell is subtle, calming and soothing to the senses.


If you are new to cold-process soapmaking, use my step-by-step guide for cold-process soapmaking.


Ingredients:

Lye Solution

62 grams sodium hydroxide

124 grams distilled water

Solid Oils

136 grams coconut oil

23 grams shea butter

Liquid Oils

295 grams olive oil

Additions After Trace

1 tsp finely chopped dried rosemary


*Use discount code SARAJEANIRENE for 20% off essential oils here!


Details: 1 lb. (454 grams), 5% superfat, 33% water discount


This is a one pound batch of soap and will make six full size soap bars using this mold. Once you have the recipe and process down, you can double or triple this recipe to create larger batches.


Instructions:

  1. Make Lye Solution by pouring sodium hydroxide into distilled water. Stir well until sodium hydroxide has dissolved into the water. Leave to cool.

  2. Melt solid oils in stainless steel pot on low heat. Remove from heat once oils are melted. Do not overheat your oils.

  3. Add your liquid oils to the melted solid oils. Use a spatula to get every drop of oil. Stir oils together to ensure they are combined.

  4. Take temperature of your oils and take temperature of your lye solution. You want them to be around 100°. It's time to combine the oils and lye solution when both temperatures have reached around 100° and are within ten degrees of one another.

  5. Pour lye solution into the oils through a metal strainer or sieve. Use an immersion blender to combine ingredients. Mix until your soap begins to reach a light trace.

  6. Add dried herbs and essential oils, stir in using a stainless steel whisk for 1-2 minutes. There should not be any streaks of oil seen when your essential oils are mixed in completely.

  7. Carefully pour soap batter into molds. Give the molds a gentle tap to release any air bubbles.

  8. Allow soap to cool for an hour or two before insulating with a towel. Set soap in an area where it will not be disturbed for two days while it hardens in the mold.

  9. After 48 hours, you can remove your bars from their mold. If applicable, cut into bars at this time. Allow your soap to cure for 28-30 days. After soap is cured, the soap is ready to use and has a shelf life of two years.


Watch Mint, Lavender and Rosemary soap bars being made here...

*The recipe is doubled in this video.

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