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Shampoo Bars

Notes:
Add citric acid and sugar to plain cool water then add lye.
Sugar is ½ tsp per pound of oils, lather
Add citric acid BEFORE adding lye to water.
Add sugar to water and dissolve completely before adding lye.
Makes 8 bars that are 2-3/8"L x 2"W x 1-½"T in a box that is 9.5" x 4" x 2".

Directions:
Weigh tallow, coconut oil, olive oil, and castor oil, and put into a crockpot on high, or a pot on the stove on low heat.
  1. Weigh the water in a heat safe container or sturdy plastic bucket, and weigh lye separately.
  2. Once oils are melted, check the temperature. You want the oils to be 100 degrees F. Let oils cool if necessary.
  3. Add citric acid and sugar to water.
  4. Once oils are at 100 degrees F, take the lye and water mix outdoors. Wearing gloves and safety goggles, carefully and slowly pour the lye into the water. Stir gently.
  5. Once the lye water has turned from cloudy to clear, leave it to cool for 10 minutes.
  6. Carefully pour the lye water into the oil mixture.
  7. Use an immersion blender to mix the shampoo bar mixture. After a few minutes, it will grow creamy, and start to thicken. Mix until it has reached “trace,” the light pudding consistency.
  8. Add the essential oils and blend again to incorporate.
  9. Pour shampoo bar mixture into molds, put the lids on and and wrap molds in towels.
  10. Heat oven to 170 degrees, shut off and place soap in oven so it will oven process to fully gel.
  11. After 24 hours, remove soap from mold and slice into bars. Let cure in an area with good air flow for 4 weeks.
  • Created:12/02/2023
  • Last Updated:11/03/2025
  • Views:426

Recipe Totals

Liquid Required192.64 g
NaOH Weight at 98.5 % Purity 96.31 g
Oil Weight646.37 g
Fragrance Weight19.39 g
Super Fat5 %
Total Batch Weight975.18 g
Lye Concentration33.33 %
Liquid : Lye Ratio2:1
Saturated : Unsaturated43:57

Recipe Properties

Property%Recommended
Bubbly Lather3614 - 46
Cleansing2112 - 22
Condition5344 - 69
Hardness4329 - 54
Longevity2225 - 50
Creamy Lather3716 - 48
Iodine5441 - 70
Ins158136 - 165

Fatty Acids %

Lauric14
Myristic7
Palmitic15
Stearic8
Ricinoleic15
Oleic32
Linoleic6
Linolenic0

Liquid and NaOH

Liquid Required192.64 g
NaOH Weight at 98.5 % Purity 96.31 g

Recipe Oils, Fats and Waxes

Oil%Grams
Castor Oil16.66107.69
Coconut Oil, 76 deg27.78179.56
Olive Oil27.78179.56
Tallow Beef27.78179.56
Total100646.37

Custom Additives

Add with the liquid
Citric Acid6.46 g6.46 g
Salt1.4 tsp7 g
Sugar1.4 tsp7 g

Liquids

Additional Ingredients

Graph: Recipe Properties %

  • 80
  • 70
  • 60
  • 50
  • 40
  • 30
  • 20
  • 10
  • 0
  • Bubbly
  • Cleansing
  • Condition
  • Hardness
  • Longevity
  • Creamy
  • 46
    14
    36
  • 22
    12
    21
  • 69
    44
    53
  • 54
    29
    43
  • 50
    25
    22
  • 48
    16
    37
Graph: Recipe Properties %

Graph: Fatty Acids %

  • 40
  • 30
  • 20
  • 10
  • 0
  • Lauric
  • Myristic
  • Palmitic
  • Stearic
  • Ricinoleic
  • Oleic
  • Linoleic
  • Linolenic
  • 14
  • 7
  • 15
  • 8
  • 15
  • 32
  • 6
  • 0
Graph: Fatty Acids %

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