Name: Homemade shampoo bar
Prep time: 60 min
Total time: 60 min
Yield: 4 soaps
Ingredients: 90 g olive oil; 78 g coconut oil; 36 g shea butter; 36 g castor oil; 70 g cold water; 34.27 g sodium hydroxide; 4.1 g rosemary oil; 6.2 g lavender oil; 2 tsp clay + a little bit of water; 1 stainless steel pot to melt the fats; 1 medium sized plastic cup for weighing the sodium hydroxide, (empty and clean); 1 heat-resistant plastic container for mixing the lye liquid; 1 mg-accurate scale for weighing the sodium hydroxide; 1 normal kitchen scale for weighing the fats/oils; 2 mixing spoons made of plastic; 1 food thermometer; 1 rubber spatula; 1 hand blender (without aluminium parts); 1 pair of rubber gloves; 1 protective goggles, important!; work clothes e.g. apron, long sleeves and trousers; newspaper for covering the working surface; 1 kitchen roll; 1 mold for the soap (silicone molds work best)