I was a village chief in a primitive society

Su Bai put the kapok seeds into the iron pot and stir-fried. After the oil was cooked out, he collected all the remaining sediment.

"Wu, these things all look dark, do you still want to keep them? Yuying asked curiously

"Of course, it’s called cottonseed sludge, and it’s the main reason for making soap."Su Bai explained.

Yuying's pink eyes widened instantly, and she asked in disbelief:"Wu, can this black thing really be used to make soap?"

You can say that Fox Ear Girl doesn't believe it, because this thing is used to squeeze oil, how can it be used to make it many times.

The most important thing is that it is also used to make soap. You must know that soap is used for bathing. To make the body clean

"You will know after you try it. This is called cottonseed oil sludge, which is the black paste substance precipitated from the oil after oil extraction and refining. It is also called soap stock."Su Bai explained

"Wu, soap stock is the basic raw material for making soap, right?"Yu Ying asked

"That's right."Su Bai smiled and nodded, and said:"We need to prepare caustic soda, salt, and rosin, and we need pots and iron spoons as equipment......"

"It's all ready."Yu Ying's crisp voice sounded.

"Then let's start making it. First, add a large amount of water to the soap stock pot and heat it over fire. Then add the oil sludge and rosin and continue to heat and stir continuously."

Su Bai said while operating,"The oil sludge and rosin must be dissolved and mixed evenly. After the oil sludge is completely dissolved, pour the prepared alkaline water into the pot, add it slowly, and stir while adding."

"Wu, why are the amounts of materials poured in different? Yuying asked curiously

"The ratio of each material is different. I will write out the ratio in detail when the time comes, so that it is not easy to make mistakes when making."Su Bai said

"Understood."Yu Ying continued to stare at the big iron pot.

Su Bai had already opened many iron pots from the system, and now there are seven or eight large iron pots piled up in Yong'an Building.

But this is not a bad thing, because everyone Each pot has its own purpose, and it is cleaner to separate those for cooking and those not for cooking.

"The alkaline water can be added five or six times, a few minutes apart each time."Su Bai warned.

"Wu, why do we have to do it several times and how many minutes apart?"Yu Ying has fully carried forward the spirit of just asking if you don't understand.

"The purpose is to fully saponify the sludge until the soap glue is soft and shiny. Also, do not be too hasty during the alkali addition process, otherwise agglomeration will occur."Su Bai warned again.

He wrote down every step of the process with a pen, so that Yuying could read it carefully and understand it when she reads the notes.

"That’s it. I didn’t expect that making a soap involves so much knowledge."Yu Ying nodded thoughtfully.

"You see, it's almost as good as it is now. After stirring like this, it can be washed with water."Su Bai stopped stirring.

"Does Wu mean to use water to wash these things? Won't it be washed off? Yuying asked curiously

"No, water washing is to add water to the soap glue that is now stirred. When adding water, it should be slow and even. It is still the same small amount and many times, but the more even the better."

Su Bai added water to it as he spoke, and warned:"Generally don't add too much water, the weight should be half of the soap glue."

"understand."Yu Ying nodded repeatedly. It can be seen from her expression that she listened very seriously.

"By the way, did you see it? If the color of the soap glue non-stick iron spoon changes from dark brown to yellowish brown, and there are still some small particles of impurities, you can proceed to the next step."Su Bai pointed at the pot and said

"Wu, what’s the next step?"Yu Ying shook her pink fox tail.

"The next step is to carry out salting out, which mainly dehydrates the soap gum and further removes impurities in the soap gum to improve the color."

Su Bai didn't stop when he said it, and continued to operate the method just now.

That is to add some salt to the washed soap glue. When adding the salt, it spread evenly and stirred fully, so that it can be made. Soap gum dehydration

"What an awesome look."Yu Ying is already confused.

"By the way, when adding salt, we must keep the soap glue temperature very high, so that the pigment impurities can be cleaned and separated."Su Bai explained

"It’s so complicated, but I remember it."Yu Ying frowned and said she remembered carefully.

"see it? At this time, the layering of materials in the pot will be obvious, and then we can let it sit and keep warm."Su Bai smiled and said

"Wu, is this okay? Yuying asked curiously

"Not yet, the soap must be completely separated from the water before the soap is considered ready. We need to cover the mouth of the pot with insulation material to maintain the temperature."

Su Bai lowered his body to remove most of the flames from the bottom of the pot, keeping the temperature at a certain temperature.

After he finished all this, he stood up, clapped his hands, and said,"That's it, leave it for more than a day before continuing."

"ah! Wu, does that mean we can't make soap today?"Yuying was a little disappointed for a moment.

"There may not be anything we can do today because we need to keep it at this temperature for a while."Su Bai rubbed the other person's head.

"That's it."Yu Ying nodded a little regretfully.

"But don’t worry, you’ll have perfect soap after a day or so."Su Bai said gently.

"I can wait."Yu Ying instantly showed expectant eyes, and her pink fox tail kept waving.

"By the way, have you learned all the steps I just taught you?"Su Bai asked.

Making soap is not an easy process. It is very tedious and complicated.

If you are not careful, it is easy to make mistakes in the steps. Once an error is made, it will affect the finished product of the soap.

"Don't worry, Wu. Although I don't have a memory as good as Sister Alan, I really remembered it carefully just now."Yu Ying's eyes looked particularly determined.

"Of course, if I don’t trust anyone, I won’t worry about you."Su Bai laughed heartily.

"Although it is really difficult, Wu once said that there are no simple things in this world."Yu Ying shook her pink fox ears.

"Well said, please make arrangements and find a store in the big market dedicated to selling soap."Su Bai already wants to start selling soap.

There was no such thing as soap in the primitive era. Soap is very clean for washing clothes and bathing. He can already predict how popular this product will be after it is launched.

"good."Yu Ying fully agreed.

"Let Sha Lan do it. She is more familiar with this aspect. You can help me train the employees."Su Bai suddenly changed his mind.

Finding a store is one thing, but training employees and opening a soap workshop are another thing.

"Is Wu talking about the workers in the workshop?"Yu Ying asked

"That's right, I want you to be responsible for teaching them how to make soap."Su Bai said softly

"Yes, it's on me."Grandma Yuying's voice sounded.........................................

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