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Chasing Qinghu all the way to Qi County, and now he wants to go back, Ao Wu is not in a hurry.

However, after staying here for one more night, Zhang Jingxuan learned his whereabouts and ran over, saying that he wanted to invite Ao Wu to his house as a guest.

If you don't go, it's like you're sorry for him.

But later I learned that Ao Wu would really be sorry for him if he really didn't go. His tyrant father was in awe of Ao Wu, and he didn't dare to force it if he didn't come, but if his son didn't come, the stick would hit his son on the ass.

Does this Lao Tzu beat his son, does it still matter?

went to Zhang Xutuo's house, and Ao Wu accepted the Zhang family's generous hospitality.

And because of Ao Wu, the salt business that Lu talked about with Zhang Xutuo was also settled with a slap on the table.

Ao Wu also saw the sample salt that Lu handed over to Zhang Jingxuan.

"It's also called salt?" Ao Wu said softly.

This made both Lu and Zhang Jingxuan set up there.

The Lu family didn't know why the sect leader was dissatisfied, and Zhang Jingxuan was strange, the salt sent by the Lu family was an extremely rare and good salt, a high-quality product, but I was afraid that the salt that the emperor ate was nothing more than that.

Such salt is not even called salt.

In Ao Wu's eyes, these white and green salts are really not called salt, and at first glance, they are not sunburned and the purity is not enough.

It's like the later generations, white flowers, and I feel appetizing when I look at it.

I'm afraid I'm going to lose my appetite when I see this salt.

However, it is also known that this is an ancient backwardness.

"I'll teach you how to dry salt." Ao Wu said softly.

This sentence fell on Lu's ears, no matter whether Ao Wu had a new salt drying method, she thought that it was Ao Wu who took care of her and did not treat her as an outsider anymore, she felt extremely happy.

"There is a salt pan at home, and Junxiucai is welcome at any time." Lu said happily.

A small thing has to drag on for a long time, which is obviously not what Ao Wu likes.

And it's uncertain when Ao Wu will be free after this time.

"Just find a place and I'll just say it."

Lu was stunned, and the sect leader was too anxious, but she completely obeyed his words.

"There is a small salt pan in Qi County, which can be used." Zhang Jingxuan said when the Lu family asked him to borrow a venue.

led by Zhang Jingxuan, he went to Xiaoyantian.

This is a salt pan of hundreds of acres, and the brine is pumped from a well, and the yield is not large. And the salt pans by the beach are indeed small.

In Chinese history, except for the Sui Dynasty and the time before Xuanzong of the Tang Dynasty, when the imperial court allowed the people to sell salt by themselves, other dynasties all accepted salt as official property, and salt households were designated as conscription.

Therefore, only in the Sui Dynasty would there be salt merchants like the rich family, and there would be such small salt pans.

The salt pan method is to pump out seawater or saline groundwater and evaporate the water in the rice field-like field, and when most of the water evaporates, what remains is brine, which has the highest salt content. At this time, the brine is pumped out and put into the crystallization pool, and the brine will slowly precipitate in the crystallization pool and form salt.

"I need two copper basins, one large and one small, and saltpeter." Ao Wu instructed the Lu clan.

Lu immediately called someone to fetch it.

Zhang Jingxuan clenched his fists and said: "Zhang still has something to do, so he will be rude and retreat first." ”

He thinks that Ao Wu wants to teach the family heirloom, and he can't peek and learn it secretly, which is respect for Ao Wu and the foundation of life, so he implicitly wants to leave.

Ao Wu doesn't have this traditional idea of his, and he covers everything.

"No, I don't. You can still rob the business of making salt, but you can't do it. Ao Wu said bluntly.

This made Zhang Jingxuan stunned, and although the Lu family was not puzzled, she listened to whatever Ao Wu said.

"Eun Gong, this is not good." Zhang Jingxuan said embarrassedly.

"There's nothing wrong with that."

Ao Wu's words dispelled his thoughts. Since Engong let him stay, it is not easy to leave. And the relationship between the Lu family and Engong is not very obvious, it seems that he is just from the same county, he can teach the Lu family the salt making method, so he is watching from the side, and it is not important.

The servant brought two copper basins with a bag of saltpeter.

Saltpeter is black, and the difference between the saltpeter of the white crystal crystal in later generations is too far, it seems that this purity is really not good.

On the top of the salt pan, Ao Wu had a bucket of clean water fetched, then squatted down and poured the clean water into a large basin.

Then I got a basin of well water from the salt pans.

Small pots are placed in large pots.

Ao Wu poured the black saltpeter into the large basin.

Because considering that the purity of saltpeter is not enough, Ao Wu poured more saltpeter.

The Lu family and Zhang Jingxuan looked a little confused, what was this doing.

In addition to these two people, there were two salt farmers watching from the side, and they were also very puzzled by Ao Wu's approach.

They had just heard that Ao Wu had a new method of making salt, but they had never seen it before.

And at this time, a miraculous thing happened, the water in the big basin seemed to be boiling, and began to boil, and wisps of white smoke flew up, which made people stunned.

"Hey, the water is frozen?" The sharp-eyed Lu shouted.

As soon as this remark came out, it immediately attracted the attention of the others, who were surprised to see that the water in the large basin had really begun to form ice cubes.

It's August, and it's amazing how cold ice can form in the sun at the hottest time before autumn!

The four of them looked at Ao Wu's gaze, looking at the immortals.

Saltpeter ice, which is the crystallization of the wisdom of the Chinese people, in the Ming Dynasty, some people used saltpeter to make ice.

However, here in the Sui Dynasty, the purity of saltpeter was not enough, and if it wasn't for Ao Wu pouring in enough saltpeter, it would still not be possible to freeze out like this.

As the large basin froze, the salt water in the small basin slowly formed small patches of ice.

When the water in the large basin is frozen, only a few large pieces of ice float in the small basin.

"Scoop up the ice." Ao Wu commanded the two salt households and said.

Shiodo looked at Ao Wu like a god, and immediately did what he said.

After picking up the ice, Ao Wu said to Shiohu: "What is the quality of the water in here?" ”

At this time, the salt farmer remembered that what he said just now was making salt, but he was not making ice by being a god.

A salt farmer stretched out his hand, dipped the water in the small basin, and put it in his mouth.

His mouth bulged, savoring the quality of the water.

His eyes went from dull to incredulous, then surprised, then still incredulous, looking at Ao Wu's gaze, he couldn't worship it, and he almost hugged his thighs immediately.

He kept his fingers in his mouth and didn't take them out, and the others didn't know what he tasted.

The other salt farmer waited impatiently, and reached out to dip his water in his mouth and tried it.

As a result, he also rejuvenated himself, holding on to his fingers.

Lu and Zhang Jingxuan were both inexplicable.

After all, Lu is a salt merchant and knows a little about salt.

She habitually wanted to reach for the salt water, but when she saw the two salt households, she immediately dismissed the idea and sniffed it with her nose.

When she raised her head, her eyes were shining, and she couldn't believe it and said, "This, this is the brine ......"

"That's right." Ao Wu nodded and said, "This is called the frozen salt method. ”

At this time, the salt farmers all let out their fingers and said happily: "This is the brine, and it is the best brine." We haven't had such good salt well water for more than a month, but Childe only took half a cup of tea to make it, and the brine is the best, it's amazing! ”

"Childe, what did you do about this?" Another salt farmer hurriedly asked.

These words made Lu's face change, she just came to the salt field to borrow it, but she didn't want the sect leader to pass on such a magical method to outsiders. Except, of course, if the leader is willing.

"Who is the owner of the Yantian family, and I am willing to sell this salt well and the salt pan in Fengyue 1." The Lu family wanted to buy this salt pan, so that these two salt farmers who knew the salt making method became subordinates.

Very domineering.

Ao Wu saw the shadow of the president of the strong woman in later generations from her.

The two salt farmers didn't know how to answer, but their eyes avoided Zhang Jingxuan many times.

Zhang Jingxuan said a little embarrassedly: "Mrs. Mainland, Engong, I'm really embarrassed, I have hidden it before, this salt field is my Zhang family's property." Since Mrs. Mainland wants to buy it, I will give it to Mrs. Mainland! ”

As the military leader of Qi County, Zhang Xutuo has some industries in private, which is also a normal thing. However, Zhang Jingxuan's decision to give it away was a bit surprising.

And the Lu family thought that the owner of this salt field was just a businessman, so he dared to buy it so domineeringly, and now when he heard that it was the Zhang family, he couldn't help but break out in a cold sweat.

This is to play prestige in front of the official family, and this time I found the Zhang family, but also wanted to make the salt merchant's business bigger in Qi County.

I didn't expect the Zhang family to have a salt field by themselves, so didn't I come to the Zhang family's territory to rob the Zhang family's business before?

She broke out in a cold sweat again.

But the Zhang family actually agreed to themselves, and the Lu family thought of Ao Wu, it seems that the Zhang family agreed to the salt business because of Ao Wu's face.

And now Zhang Jingxuan is sending Yantian, but he is afraid that he can see that his relationship with Ao Wu is not ordinary, so he sent Yantian.

Thinking that they were all sect leaders, the sect masters were omnipotent in her heart, so she didn't feel strange and calmed down.

Ao Wu looked at him, he was not narcissistic enough to take it for granted. Even if he saved his father, that is, he agreed to the Lu family's business this time, the Zhang family would not be affected if they had salt fields, and they could also make money by selling them outside. Now sending Yantian is obviously for other purposes.

"Zhang is ashamed!" Zhang Jingxuan apologized to Ao Wu embarrassedly, "Zhang sent the salt field, it was indeed selfish, he became a villain, and asked Engong for asking Zhang to make this magical frozen salt method born in Qi County and settle down in Qi County." In this way, the father of the family can report to the court in order to get a credit from His Majesty. Therefore, he sent Yantian to Mrs. Lu. I believe that Mrs. Lu can help Engong manage this small salt field! ”

He saw that Ao Wu taught the Lu family salt making method, so the two should have an interest relationship. That's why they will send Yantian directly to the Lu family.

"If you report it, won't others learn from it?" Lu asked worriedly.

……