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Tuesday, June 25, 2024

How to make soap in the apocalypse

In a post-apocalyptic scenario where traditional resources and supplies may be scarce, you can make soap using relatively simple ingredients and methods. Soap is essential for maintaining hygiene and preventing the spread of disease. Here’s a basic recipe for making soap in such a situation:


  1. Animal Fat or Vegetable Oil: You can use animal fat from animals you’ve hunted or vegetable oil from plants like coconut, palm, or olive. Collect and render the fat to obtain a clear liquid.
  2. Lye: Lye, also known as sodium hydroxide, is essential for making soap. It can be found in some cleaning products or created by leaching wood ash with water. Make sure you have protective gear (gloves, goggles) when handling lye, as it is caustic.
  3. Water: You’ll need water for dissolving the lye and for the soap-making process.


  1. Large Pot or Container: Use a heat-resistant container to mix your ingredients.
  2. Stick or Stirring Rod: To mix the ingredients.
  3. Molds: You can use any mold or container to shape your soap. Simple wooden or plastic molds work well.


Safety Precautions:

  • Ensure you’re in a well-ventilated area.
  • Always add lye to water, not water to lye, to prevent a dangerous chemical reaction.
  • Wear protective gear when handling lye.
  • Keep children and pets away from the soap-making process.

Making Soap:

  1. Prepare the Lye Solution:
    • Measure out the amount of lye you need for your recipe. Use a lye calculator to determine the precise amount based on your fat or oil quantity.
    • Add the lye slowly to a container of cold water (not hot) while stirring constantly. Be cautious, as this will release fumes. Do this step outdoors or in a well-ventilated area.
    • Allow the lye solution to cool while continuing to stir occasionally.
  2. Prepare the Fat or Oil:
    • Melt your animal fat or vegetable oil in a separate container. Heat it gently until it becomes a clear liquid. Be careful not to overheat or burn it.
  3. Mix the Lye Solution and Fat:
    • Once both the lye solution and fat are at a similar temperature (around 100-110°F or 38-43°C), slowly pour the lye solution into the fat while stirring continuously.
  4. Stir and Mix:
    • Stir the mixture thoroughly until it thickens and reaches “trace.” Trace is a stage where the soap mixture leaves a trace or line when drizzled on the surface.
  5. Pour into Molds:
    • Pour the soap mixture into your molds. Tap the molds gently to remove air bubbles.
  6. Curing:
    • Allow the soap to sit in a cool, dry place for about 4-6 weeks to cure. During this time, the soap will harden and excess moisture will evaporate.
  7. Cut and Use:
    • After curing, remove the soap from the molds and cut it into bars or desired shapes. Your soap is now ready to use.

This basic soap-making method can be adapted to various situations and resources you have available in a post-apocalyptic scenario. Remember that safety precautions are crucial, especially when working with lye, as it is a hazardous chemical.

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