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5 from 3 votes

Castile Soap Recipe

A gentle olive oil soap recipe for sensitive skin
Prep Time1 hour
Insulation Time1 day
Cure Time21 days
Type: sensitive skin
Superfat %: 10%
Keyword: castile soap, cold process soap, organic soap
Makes: 3 pounds
Author: Kelly

Equipment

  • 1 large stainless steel pot
  • 1 large glass bowl
  • 1 small glass bowl
  • 1 zip close bag
  • 1 large spoon
  • 1 rubber spatula
  • 1 scale
  • 1 stick blender
  • 1 3lb soap mold

Ingredients

  • 30 ounces olive oil
  • 5 ounces coconut oil
  • 11.2 ounces water
  • 4.5 ounces lye
  • 1 ounce essential oil of choice

Instructions

  • In a large stainless steel pot (no aluminum), melt the coconut into the olive oil and remove from heat.
    30 ounces olive oil, 5 ounces coconut oil
  • Carefully, using eyeglasses, face mask, and gloves, pour the lye into the water (never water into the lye) and stir until dissolved.
    11.2 ounces water, 4.5 ounces lye
  • When oil mixture and lye water is between around 90 degrees Fahrenheit, pour the lye water into the oil mixture and blend with a stick blender. You can use a hand mixer if that's all that you have. Blend on and off until the soap reaches light trace. Castile soap is known to take a long time to come to trace, so don't get discouraged if it doesn't thicken like other soaps before having to pour into the mold.
  • When mixture forms a trace, add the essential oil and blend.
    1 ounce essential oil of choice
  • Pour into a prepared mold and insulate if your home is below 70 degrees Fahrenheit. Let it sit for 24 hours. After 24 hours, remove the soap from the mold and cut. If it's too soft to remove from the mold, check back after another 24 hours. After cutting, allow to cure for 3-6 weeks to fully harden.