Ye Qing thought about the price of salt, which was dozens or hundreds of times more expensive than that of later generations, and could only wrinkle his nose.

The cost of using the caustic soda exchanged in the space is too cost-effective.

However, caustic soda can be used for boiling and bleaching paper due to its alkaline properties.

It can also be used in the textile industry for the treatment and dyeing of fibers, and for mercerizing cotton fibers.

Therefore, if you can use the salt made by seawater to produce caustic soda, the cost is cheap and the profit is large.

It's just that this Chong'an is still far from the sea, and it will be convenient if it is in Jianzhou.

After thinking about it, she could only think of a way to not use salt for the time being.

Using lime and cheap miscanthus to make caustic soda is only less in production, but the cost is still much cheaper than using salt.

After thinking about this, Ye Qing decided to use lime and miscanthus to make caustic soda when he arrived in Chongyang Town.

Now, it's just a test piece, so you can just use table salt.

Ye Qing took the boiled lard and quicklime into his house, closed the door and prevented others from coming in.

She first put water and quicklime in a prepared basin, add salt and stir all the time, and when the time comes, it will settle down and use the top layer of water directly.

After the caustic soda water is made, use another basin to gradually put the caustic soda water and lard into it.

Stir for another quarter of an hour or so, and when it is thick to a certain extent, you can pour it into small bowls.

Because of the rush of time, she didn't make any molds, so she just used the bowl.

After getting all this done, Ye Qing put a few small bowls into the space to speed up the saponification.

The remaining few small bowls are placed in a ventilated place, and the manufacturing process of soap takes more than ten days, and it can be used if it is not solidified, otherwise it will become something like tofu residue when it touches the water.

This is just an experiment, and when the soap is ready, she will naturally make it in large quantities in the space, and then she can take it out and sell it.

She had already thought about it, and for the time being, she would only sell in the town and Chong'an, and it would be too big, for fear that the background of the Qian family would not be able to withstand the covetousness of those who have a heart.

In addition, Zhou Ying and Ji Xiaoyun want to worship themselves as teachers, and she will consider this matter.

The power of the Duo Zhou family and the Ji family is also good for her to do business in the future.

In the next two days, Ye Qing used space water to revive the pot of orchids.

In her spare time, she made a hundred catties of caustic soda with miscanthus and quicklime in the space.

I also figured out the matter of making cement with lime, but the raw materials are not yet complete, so I am only in the idea.

However, she came up with the idea of making an earthen refrigerator by making ice cubes.

This is still a news that Ye Qing thought of before he had seen, that is, there was a young man in Africa named Muhammad Ba Aba.

He used the simple principle of ceramic heat conduction to invent a "clay pot refrigerator", also known as a "desert refrigerator".

The structure of this "clay pot refrigerator" is very simple, the production method is also very simple, and the main thing is that the cost is very low, in fact, it is a "pot in a pot".

It consists of an inner tank and an outer tank, which are filled with damp sand.

When using, place food and drinks in the inner jar, cover the mouth of the jar with a damp cloth, and then place it in a dry and ventilated place.

And often sprinkle some water on the sand between the two cans, as the evaporation of the water will take away some of the heat.

This keeps the jar inside cold, allowing the food to last longer.

And the cost is cheap, even ordinary people can afford to use it, after all, ice cubes are still a luxury here, and they are easy to turn into water.

Thinking of this, Ye Qing walked into the house and asked Qian Junbao: "Xianggong, I want to open a clay pot workshop." ”

"What are you doing in a clay pot workshop?"

"Of course, it's useful, and I want to make all kinds of sauces in the future, and I need to use a lot of clay pots.

To buy a clay pot, it is better to have a clay pot workshop yourself.

However, I don't plan to open a clay pot workshop in Chong'an, but in Chongyang Town, so I'm looking for a master who can make clay pots and can go to Chongyang with us. ”

Qian Junbao thought for a while and said: "I remember that Qian Laifu's Yue's family made clay pots, and after all these years, I don't know if I can do it or not."

I'll ask Duoduo to help you ask, see if anyone in their family is going to Chongyang Town with us, Qian Laifu is going to go with us, maybe someone in their family is willing to go together. ”

"Okay." Ye Qing nodded.

In fact, it is okay to find a master to make clay pots in Chongyang Town in a few days, but Ye Qing is a little anxious, so he wants to make a "desert refrigerator" as soon as possible.

And this kind of thing that doesn't have much technical content doesn't need any technical secrecy.

It is estimated that people who can make clay pots will do it without looking at it for too long, so she didn't think about making money from this, so it should be convenient for the people.

Qian Duoduo soon ran to ask Qian Laifu.

"Uncle Laifu, I heard that your mother-in-law's family makes clay pots, don't you know if you're still making them?"

"Make a clay pot...... My mother-in-law's family now has only one nephew left who will do it.

However, last year, his daughter-in-law died in childbirth, and the clay pot shop was not opened, so I don't know if he is still doing it. ”

"Then you go and call him and ask if you would like to go to Chongyang Town with us, the young lady wants to open a clay pot workshop there, and he will be in charge in the future."

His daughter-in-law went, and he would marry another one after a year and a half to make money. ”

Qian Laifu was overjoyed when he thought about it, and said repeatedly: "That's right, when I am in the evening, I will go back to my mother-in-law and tell her to go to her nephew to tell her about it." ”

"Okay...... That's waiting for your news. ”

……

Chong'an City Shangguan Mansion.

After the tired Shangguan Da greeted the old man and the old lady, he took out a letter from his arms and presented it to Shangguan Kai with his own hands.

"Thank you for your hard work, go down and rest." Shangguan Kai nodded and said.

"Don't work hard, sir, the little one goes down."

After Shangguan Da went out, Shangguan Kai opened the letter and looked at it, and after reading it, he looked angry.

said to his eldest son, Shangguan Wenlin, who was standing aside: "Your mother's letter, you can also read it." ”

Shangguan Wenlin took the letter and read it quickly, his face was full of surprise.

"Chang'er, he actually asked his mother for 10,000 taels of silver, what did he want to do?"

His mother went back to Yuezhou to visit her grandfather, but she didn't expect her son to write a letter to ask for 10,000 taels of silver from them?

Shangguan Kai slammed the teacup on the table, opened his mouth and scolded: "I also just knew, he made a bet with others to save Ouyang Feng's pot of Molan."

I really don't know what to say, I actually dare to bet 10,000 taels, and I don't let us know, and now he must have become the laughing stock of Chong'an City. ”

Shangguan Wenlin thought for a while and said, "Father, didn't you say that the pot of Mo Lan would definitely die?" In the past, I also found a pot of Mo Lan with a similar appearance.

He gambled 10,000 taels with someone, maybe he could win it back? ”

"You are confused, is this a matter of silver? How the hell did you discipline him? ”

”