It's like a trick!

Seeing the maid rubbing her hands and washing the stained rag clean, Song Renjie said in a daze.

"This, this is soap."

After looking through the newly washed rag, Song Renjie exclaimed.

"It's actually washed so clean and so labor-saving. It's really......"

Song Renjie, who was shocked and unable to speak for a moment, suddenly asked again.

"Is this also made by Shi Lang...the prescription of a miraculous doctor?"

He originally wanted to say "Doctor", but when he spoke, he changed his words to call him "miracle doctor".

"By my father, this soap was made by Zhiyuan himself, and he said that if the formula is adjusted, it can also be made with pleasant aromatic soaps that can be used for bathing."

The son's answer made Song Renjie, who originally regarded Shi Yiwen as a doctor, feel shocked and lost his mind.

"Father, my child thinks that this soap is easy to use, cheap, and is a must-have at home. If it is set up a factory to produce it, it will definitely be sold well in various places, and the profits will definitely be considerable."

"considerable?"

Shaking his head, Song Renjie said.

"It's not just considerable. As long as it can sell well in the world, even if it's just sold well in Nanzhili, the profit per year is more than hundreds of thousands of taels..."

Song Qiyu was stunned for a moment and said after a long time.

"Father, the child originally just wanted to buy the formula from Zhiyuan at a high price in the name of toothpaste to repay his kindness, but he never thought, never thought..."

"I never thought that he would give you some wealth?"

Looking at his son who was stunned, Song Renjie sighed.

"This is the opportunity. It is the jade. It is the opportunity to save people from the world. And you are dedicated to repaying kindness, and it is also the opportunity. If you are so lucky, why should you mind it?"

Song Renjie, who had been in business for many years, was naturally not comparable to Song Qiyu.

"Dad, Zhiyuan shows me with this secret recipe that I cannot take advantage of Zhiyuan!"

Thinking of the profits stored in the soap, Song Qiyu immediately said.

"This recipe must not be bought. Dad, the child thought that since Zhiyuan had taken out the soap recipe, the factory should have 50% of him... no, 70% of him."

"Um."

Nodding slightly, Song Renjie said.

"It is really the duty to repay kindness. If we have these three parts, we can take advantage of it. After all, this factory is only worth a thousand taels. Zhiyuan can still get this little money..."

After stroking his beard and pondering for a moment, Song Renjie said again.

"You told Zhiyuan that these three components are not only factories, but also the future sales of soap. After all, although this soap is easy to use, it is also a fresh product. People will definitely not accept it for a while. If they want them to accept it, it will take some trouble. It is estimated that in less than a year or two, the people will not recognize soap."

"A year and a half?"

Song Qiyu's words made Shi Yiwen laugh.

"Why do you need to wear it for a year and a half? As long as it is produced, I promise that it will be sold well in Nanjing within half a month."

"Half a month?"

Looking at Shi Yiwen in surprise, Song Qiyu asked back.

"What are the good ideas for Zhiyuan?"

"The good strategy is not enough, it's just a little idea. But since you want to produce it, the most important thing is to prepare the raw materials and then produce the soap. When the soap is sold well, it will be even more convenient for supply, right?"

Song Qiyu naturally did not object to this. The factory was ready-made and all it needed was to acquire raw materials and recruit workers. The former Song family's own business could complete the required raw materials. As for the latter, soap production itself is not a technical job, and workers only need simple training to enter production.

Originally, Shi Yiwen wanted to teach workers how to produce soap directly, but at Song Qiyu's reminder, he realized the importance of confidentiality, so he immediately adjusted the production and put the steps of producing sodium hydroxide with lime and soda ash at home. As for other processes, nothing is worth keeping confidential, and it cannot be kept confidential.

In the next few days, Shi Yiwen trained workers in the factory most of the time. The so-called factory was actually just a few teenagers aged 15 or 16. Rather than workers, they were a group of apprentices.

"You guys are optimistic. When the mercury column drops to "40"...that is, this position, then start pouring "No. 3 water" in!"

The so-called "No. 3 water" is actually sodium hydroxide, which is all packed into a sealed pottery jar and taken as you use. The thermometer is brought by Shi Yiwen from the space.

All the young people nodded blankly and repeated the methods he taught step by step. In fact, they are apprentices. As apprentices, they naturally have to be respectful to their masters.

After waiting for the temperature of the grease and alkaline to drop below forty degrees, Shi Yiwen then asked them to pour sodium hydroxide into the pot and mix together.

"Yes, start stirring now, make sure to stir thoroughly so that they are fully integrated, otherwise the oil will float on it!"

Because the stirring is not sufficient, the oil and alkali will not merge and the oil will float on it. So Shi Yiwen reminded them to keep stirring. When they first started stirring, the oil was still on it. Because the soap needs to be stirred for about three hours, this process seems a bit time-consuming.

"You can think of a way to make the stirring process easier."

Thinking of this in his mind, Shi Yiwen ordered two apprentices to take turns to stir the grease in the pot. In the end, the soap liquid became thicker and thicker.

"At this point, you try to mark a few words on the surface of the soap,"

Shi Yiwen said, and used bamboo branches to sketch a few strokes on the surface of the soap liquid.

"Look, you can see the font traces from the side now, and it lasts about ten…1…2…"

"At this speed, dozens of numbers will not disappear, and you can put it in the mold."

The mold is a mold made by a carpenter, which is similar to the mold of a mooncake. After pouring the soap liquid into the mold, the wooden molds are placed in another warehouse and waiting for it to solidify completely. However, the soap curing time is not short, and it takes two to three days to cure and remove. Even at this time, the soap is still not made. Although it can be barely used, the effect is still poor. These laundry soaps without any spices need to be left for another half a month or more. After it is completely saponified, the soap becomes very gentle, which is commonly known as "ripe", and can not be used until this time.

In the next fifteen days, this soap factory in the sixth year of Wanli was also the first factory of this era. It has been producing tens of thousands of kilograms of butter, lard, soybean oil and other oils have been used to make tens of thousands of pieces of soap. After the apprentice mastered the production process of soap, Shi Yiwen had to withdraw from the factory, but he was not idle. After all, he had already put it out before.

Now, the most important thing is to sell the soap.
Chapter completed!