It's like a trick!

Watching Yahuan wash the stained rag with only her hands, Song Renjie said dumbfounded.

"This, that's soap."

Looking at the freshly washed rag repeatedly, Song Renjie exclaimed.

"It's so clean, and it's so labor-free, it's really, really ......"

Song Renjie, who was speechless for a while, suddenly asked again.

"This is also Shi Lang...... Prepared by the doctor's prescription? ”

Originally, he wanted to say "Langzhong", but when the words came to his lips, he changed his words to "miracle doctor".

"Back to my father, this soap was made by Zhiyuan himself, and he said that if you adjust the formula, you can also make a pleasant soap, which can be used for bathing."

The son's answer made Song Renjie, who originally only regarded Shi Yiwen as Langzhong, stunned.

"Father, the child thinks that since this soap is easy to use, and the price is cheap, and it is a necessary thing at home, if it is produced in a factory, it will definitely be able to sell well everywhere, and the profit will be considerable."

"Considerable?"

Shaking his head, Song Renjie said.

"It's not just considerable, as long as it can be sold all over the world, even if it is only sold in Nanzhili, the annual profit will be more than hundreds of thousands of taels ......"

Father's words made Song Qiyu stunned for a moment, and then said for 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 about it, never thought about ......it."

"Never thought that he would give you a fortune?"

Looking at his stunned son, Song Renjie sighed.

"This is the chance, its jade, Zhiyuan saving people is the chance, and you are dedicated to repaying the favor, it is also the chance, the opportunity is like this, why bother with it."

Song Renjie, who has been up and down in the business sea for many years, is naturally not in a state of mind that Song Qiyu can compare.

"Dad, Zhiyuan shows me this secret recipe, I can't take advantage of Zhiyuan!"

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

"This formula must not be bought, Dad, the child thinks that since Zhiyuan has come up with a soap formula, the factory should have fifty percent of him...... No, seventy percent of them. ”

"Hmm."

Nodding slightly, Song Renjie said.

"Knowing the grace is really our duty, and we have to take advantage of these three components. After all, in the end, this factory is only worth a thousand taels, and Zhiyuan can still get this money. That's it......"

After pondering for a moment, Song Renjie said again.

"You and Zhiyuan said, these three components, not only the factory, but also the future distribution of soap, after all, although this soap is easy to use, but it is also a new thing, the people must not be easy to accept for a while, want to let them accept, it will always take some twists and turns, estimates, less than a year and a half, the people will not recognize soap."

"A year and a half?"

Song Qiyu's words made Shi Yiwen laugh silently.

"Why wear it for a year and a half, as long as it is produced, I guarantee that it will sell well in Nanjing in less than half a month."

"Half a month?"

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

"What's the best way to get there?"

"It's not a good idea, it's just a little idea, but since it's going to be produced, the most important thing is to prepare the raw materials, and then produce the soap, and when the soap sells well, it's good to supply it, right?"

In this regard, Song Qiyu naturally did not object, the factory is ready-made, all that is needed is to purchase raw materials and recruit workers, the former Song family's own firm can match the required raw materials, as for the latter, soap production itself is not a technical job, workers only need simple training to put into production.

Originally, Shi Yiwen also wanted to directly teach workers how to produce soap, but under Song Qiyu's reminder, he realized the importance of confidentiality, so he immediately adjusted his production and put the steps of producing sodium hydroxide from lime and soda ash at home.

In the days that followed, S. Ewen spent most of his time training workers in factories, which were actually just a few fifteen or sixteen-year-olds, more apprentices than workers.

"Look at it, wait until the mercury column drops to '40'...... That's when it's at this position, and then start pouring "No. 3 water" into it! ”

The so-called "No. 3 water" is actually sodium hydroxide, which is packed into a sealed clay jar and can be taken as you go. And the thermometer was brought by Shi Yiwen from the space.

Those young people all nodded in a daze, repeating the method he taught step by step, in fact, they are apprentices, as apprentices, they naturally have to be respectful to the master.

After waiting for the temperature of the grease and lye to drop below 40 degrees, Shi Yiwen ordered them to pour the sodium hydroxide into the pot and mix it together.

"Yes, start stirring now, be sure to stir well and let them blend well, otherwise the oil will float on it!"

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

"I could have found a way to make the mixing process easier."

Thinking like this, Shi Yiwen instructed the two apprentices to take turns stirring the grease in the pot, and at the end, the soap became thicker and thicker.

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

Shi Yiwen said as he made a few strokes on the surface of the soap with a bamboo branch.

"You see, you can see the font marks from the side now, and they last for almost ten ...... 1…… 2……”

"At this rate, dozens of numbers, the handwriting does not disappear, and then you can enter the mold."

The mold is made by a carpenter, which is similar to the mold of moon cakes, and after the soap is poured into the mold, the wooden molds are placed in another warehouse and wait for it to be completely cured. However, the curing time of soap is not short, and it takes two to three days to cure and release the mold. Even by this time, the soap was still unmade, and although it could be used barely, it was still not very effective. These laundry soaps without any added fragrances need to be left for another half a month or more, and after it is completely saponified, the soap becomes very mild, which is commonly known as "ripe", and can only be used at this time.

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

Now, the most important thing is to sell the soap.

(Remember history, don't forget 918.) Three watches today, and try to ensure at least three watches every day in the future. Ask for recommendations, ask for support)