The next morning, Chi Fei went to the kitchen to take out a few jars in the corner.

In order to help it volatilize naturally, Chi Fei did not seal the jar, but covered it with a layer of oiled paper to prevent dust from falling, and left enough air vents.

After lifting one of the jars of oiled paper, Chi Fei saw that half of the space inside was already covered with yellow solids, and it looked like it was dry.

He cut out a piece with a knife and rubbed it with water.

The smooth, warm familiarity suddenly made him feel at ease.

He rubbed his hands with the foam repeatedly, and then washed them with water, and his hands suddenly became clean.

Chi Fei was a little excited, these soaps really made him successful.

In order to verify the effect, he took the jar of soap that had been opened to Zhang Xiao'e to use, either washing clothes or washing hands.

After Zhang Xiao'e used it, she was amazed.

She couldn't have imagined that these yellow lumps were so magical, that with a few hard rubs, they could create a large amount of foam and remove stains that were otherwise difficult to clean.

The effect is even more pronounced if it is used to wash hands. No matter how much oil and dirt you have on your hands, as long as you rub them a few times, you can wash them clean.

The first time she used such a useful thing, she was very excited, and hurriedly asked Chi Fei what it was.

"It's called soap, and like bath beans, it can be used to wash clothes, wash hands and bathe, and it's better and cheaper than bath beans. In addition to soap, something better will appear later. ”

Chi Fei has already thought of how to upgrade the soap product and make the upgraded product a special product for the rich.

In fact, to put it bluntly, it is very simple, that is, add fragrance to the soap, and use a mold to shape it, so that it becomes a high-grade soap, and distinguishes it from ordinary soap.

Chi Fei didn't know how to make the mold, and only thought of the stupidest way, that is, to make an opening and closing mold.

To put it simply, it is to dig out the common shape of modern soap from a piece of wood that can be opened on the left and right sides, and then fill it with the soap that has not yet solidified. When it's dry, open the mold left and right to get a complete soap.

Of course, there will definitely be traces of gluing on the left and right closures of the soap, and you just need to sharpen it with a knife.

As soon as he said it, Chi Fei immediately drew the drawings of the mold, and then went to the carpenter to try it out.

He chose a carpenter with good craftsmanship and a few apprentices, ordered 200 molds in one go, and delivered them half a month later.

Because the round jar was inconvenient to take out the finished soap, he found another bricklayer to order more than 20 square large clay pots. It is specially used to make ordinary soap, and it is also delivered half a month later.

The problem of molds and square clay pots was solved, and the remaining problem was how to add fragrance to the soap.

He knew that modern soaps were all directly added to the fragrance, but the problem was that he didn't know how to make the flavor.

He only knew one way to refine essential oils, and that was distillation.

To put it simply, it is to extract the essential oils of floral plants through continuous distillation.

Although Chi Fei knew the general principle, he hadn't done it himself after all, and it was completely on paper.

And he felt that this method was too cumbersome, and the devil knew how many times he had to steam it to extract the essential oil.

Chi Fei felt depressed, but also felt a little strange.

In his world, distillation has been around for a long time. Why has this ancient society, which is very similar to the Ming Dynasty, not yet appeared in this kind of refining method?

But it wasn't his concern, he had to think of another way to add incense as soon as possible.

In the end, after thinking about it for a long time, he finally came up with a stupid solution, which was to soak water directly with spices.

Spices have been around for a long time in ancient times, so it was natural for Chi Fei to think of spices.

His idea was very simple and crude, which was to wrap the spices in a fine linen cloth and boil them in a pot. After cooking, let it soak for a few more days to bring out the fragrance of the spices thoroughly.

In this way, the water soaked in spices will have a fragrance itself, and then use this water to mix with soda ash to form a fragrant soda ash solution.

Then, the soda ash solution is reacted with hydrated lime to produce a caustic soda solution.

Then use the caustic soda solution to react with soybean oil to make soap.

Finally, the butter-like soap is filled into the mold, and when it dries, it becomes soap. Here's the rough flow.

Chi Fei first bought a variety of different kinds of spices, and then took Zhang Xiao'e to do fragrance experiments in the kitchen.

At the beginning, the results of the experiment were not ideal, and the flavor of the brewed spice water was either too light, or after reacting with soda ash, the taste was easy to change and become a very strange smell.

They try different spices and different portions in the same way, sometimes mixing several spices.

After a lot of experimentation, they finally settled on a spice blend. This blend of three spices stabilizes the fragrance and does not alter it due to chemical reactions.

And the three spices themselves are not expensive, which is important in terms of cost control.

At this point, their experiment is half the battle, and then they can start to try to make soap when the mold is ready.

Zhang Xiao'e found this kind of experiment very interesting, and wanted to try other scents.

Chi Fei saw that she was so interested, so he bought another batch of spices and asked her to do her own experiments.

Chi Fei thought so, it would be best if she could make a new formula, and if she couldn't do it, it would be better to practice it.

Because Chi Fei has decided to hand over all the soap production to her in the future. After all, he has to write every day, and he really doesn't have time for this.

For this reason, Chi Fei felt that it was necessary to buy another subordinate to come back to share Zhang Xiao'e's pressure.

First, it can increase manpower for the production of soap in the future, and secondly, there are still too few people at home, and it is good to have more than one person to do things.

So the next day, Chi Fei went to Mrs. Zhao and said that he wanted to buy another subordinate, the kind of young man who was both powerful and honest, and only needed the kind of death deed.

Mrs. Zhao then brought a few people over to choose for him.

They were all young people between the ages of seventeen and eighteen and their twenties, and many of them looked like they were used to doing farm work.

There was only one tall and strong man who was not like a farmer, and Chi Fei found out when he asked that he was a child of a hunter family who had followed his father to the mountains to hunt since he was a child. Later, his parents died early, and he lived a hungry life alone.

He also fled from the north, and after coming to the capital, he could only work as a beggar outside the city because he had no money and could not afford to do "white money". It is very similar to Su Zhen's experience.

Originally, I wanted to survive by hunting, but there were not many mountains in the capital, and since a large number of displaced people, what I could eat has long been eaten, and where can I still hunt.

In the end, he was so hungry that he had to sell himself. But because he ate too much and was disgusted by the master's family, he finally came to Mrs. Zhao after several rounds.

Seeing that Chi Fei seemed to be very interested in this big man, Mrs. Zhao hurriedly recommended: "Brother Su, although this big cow eats a little more, he is really honest, he doesn't steal food, and his strength is the greatest among so many people." You might as well think about it. ”

Chi Fei stared at him, only to see that the other party's expression was a little silly, but his eyes were very positive, and his first impression was quite good.

Of course, the so-called road knows the horsepower, and it will be popular for a long time. What kind of person is to get along for a while before you know, the first impression is unreliable. Chi Fei also observed Zhang Xiao'e for more than two months before he began to trust her.