Bar soap is used in many homes mainly for washing purposes, it is also very easy to produce and also easy to market once it has a good fragrance. It also sells without fragrance but you know people and fancy things or things that smells attractive, just make yours clean with good shape, fragrance and also readily available then watch how you will make huge profits.
• Metal bowl or bucket
• Long turning stick
• Nose mask
• Soap moulds
• Gas cylinder or stove
• Thick bowl
Note: each equipments listed here has its own significance and they are equally important. I don’t want to be held responsible for teaching you how to make soap caustic soda and not having proper protection.
The metal Bucket is used because if it is a plastic bucket, the solid particles of the caustic soda may come together and melt the bottom of the Bucket. The nose mask is to protect you from the harmful gases/fumes which is released when the caustic soda is poured into water because the fumes may affect the mucus lining/membrane in the nose, you should also avoid looking directly into the bucket because the fumes may also affect the eye.
The gloves prevent direct contact with the mixture and the long turning stick ensures you are not very close to the bucket in case the water splashes. Then the soap moulds are needed so the soaps can take the form of any one it is poured Into.
• Caustic soda – 2kg
• Vegetable oil – 6 litres
• Caustic soda: it goes by many names ranging from NaOH which means sodium hydroxide or Lye. It can also be in the solid which has a white crystal form or the diluted form as a liquid but I will advice you to buy the solid one.
• Vegetable oil: you may use palm oil, palm kernel oil or coconut oil. Anyone you please, just make sure it is vegetable oil.
Please follow each procedure accordingly as it may affect the turn out of your soap.
• Step 1: Dilute your caustic soda in 4 litres of water and keep stirring till the fumes or gases go away. You should pour the caustic soda into water and not the other way round.
• Step 2: cover the bucket and leave the mixture for 24 hrs (a day)
• Step 3: After a day, bring out the bucket. Heat the vegetable oil in a pot but not to the extent of frying it
• Step 4: pour the heated oil into a thick bowl
• Step 5: slowly pour the diluted caustic soda into the oil, you should have noticed a milky liquid by now
• Step 6: rub the insides of your soap moulds with a little oil so that your soaps can be removed easily then pour the milky liquid into the moulds
• Step 7: cover the moulds till the milky liquid solidifies into soap.
There are many ways through which this soap can be made, two amongst the many are cold and hot process. The cold process doesn’t require heating the oil, just pour everything into each other then you are done but you would have to wait for 4 to 6 weeks for your soap to solidify but the hot process is the one written above and you just have to wait for a day or two for your soap to solidify.
Once you have poured the caustic soda into the oil, their is no more traces of caustic soda in the soap. You may also decide to add color or fragrance to your soap before the soap solidifies in case you want to sell it.
You may use empty tins of milk with it’s top lid removed as moulds, you can also use a cup or plate that has a good shape or buy specific moulds for your soap. After the soap has solidified, you may now remove the soap from it moulds, cut and design/stamp then sell at your desired price.
Note: the process through which the oil later solidifies when caustic soda is poured into it is Emulsification of fats and the general soap making process is Saponification.