Materials/Ingredients (for 28 bars)
- Coco oil – 8 kg
- Caustic soda solution, 36 deg. Be (30% solution) – 5 kg
- Soda ash – 90 g
- Salt – 48 g
- Sodium silicate – 400 g
- CDEA [coco diethanolamide] – 40 mL
- Citronella oil – 20 mL
- Water – 6 L
- Plastic pail – 16 L cap. (2 pcs); 20 L cap. (1 pc)
- Hydrometer, 0-70oBe
- Weighing scale – 10 kg
- Wooden stirrer/manual or electric mixer
- Spatula, stainless
- Basin (large)
- Graduated cylinder
Preparation of Materials
Caustic soda solution, 36 deg. Be (30% solution): Dissolve 2 kg caustic soda in 4.6 liters water. Cool to room temperature, check the concentration with the hydrometer, adjust (if necessary) and filter if needed before using.
Additives: Dissolve salt, soda ash and sodium silicate in 1.4 L of water.
Preparation of the Soap
- Measure or weigh carefully the required quantity of coco oil.
- Weigh the lye or caustic soda solution required (5 kg) and add slowly to the oil, stirring continuously for about 30-45 minutes until it attains the condensed milk-like consistency.
- Add the measured amounts of dissolved additives and CDEA (foam booster) with continuous stirring from 5-10 minutes more. Then add the essential oil with stirring. Stop stirring when the mixture attains a viscosity similar to condensed milk.
- Pour the homogenous viscous soap mixture into the moulder, allow to set at room temperature for 12 hours or until soap solidifies.
- Cut the soap into bars of suitable sizes with a string or wire attached to the wooden/metal cutter. Twenty-eight (28) bars will be produced. The soap is white or creamy white. Cut bar into 4 pieces and pack in a plastic bag.
- Allow to age from 7 to 10 days to complete the saponification reaction.
For inquiries on materials and ingredients, please call DOST at Tel. Nos.: (632) 837-2071 to 82 locs. 2182, 2218, 2180;