That's right... Yantian, Mo Yun suddenly remembered that the princess was here to take him to visit this place.
She didn’t know much about the salt industry. She only knew that salt production was the lifeblood of the country and was of great benefit. However, the profit of salt lies in taxes, and it should have nothing to do with the princess. Why is Ning Wanjun so concerned about this kind of thing
When she came to the crystal pool, the princess also took off her shoes and socks and stepped into the pool happily.
"You're right, it turns out that salt can really be exposed to the sun." She picked up a handful of salt crystals mixed with sand and put them under the sun to look at them carefully. "The Wang family probably never dreamed that we don't even have any firewood. Burning it produces the purest salt.”
"Pure?" Xia Fan raised his eyebrows and asked, "Where is this? What you have in your hands is just the lowest grade coarse salt."
"The lowest grade?" Ning Wanjun looked at Li Duojin in surprise, "Eunuch Li, what is the salt in the palace like?"
"Your Majesty, it's almost the same as this. It's just crushed and sieved to make it more delicate."
"I'm just telling you." The princess poured the salt in her hand back into the water. "Sea salt is bitter and mineral salt is astringent, so well salt has the weakest taste. Of course, the ones that can be given as tribute to the palace are usually of the best quality. That batch.”
This time it was Xia Fan's turn to be surprised. Did they not have the concept of refined salt at all? The person in front of me is not an ordinary wealthy business family, but Princess Qi Guo!
But if you think about it carefully, the purification of table salt is indeed a matter of waiting until the essence of table salt is understood.
"Could you make it purer?" Ning Wanjun saw that his expression was wrong and asked curiously.
"Although it cannot be the purest, it can at least remove most of the odor." Xia Fan nodded, "That is the so-called refined salt—as fine as dust and as white as snow. However, this part of the process will greatly reduce the output, so in the early stage I Didn’t really think about it. I can make extra if you want to taste it.”
"I want to eat!" Ning Wanjun replied immediately, her eyes full of light.
This was a rare thing that was not available in the palace, and she was determined not to miss it.
As thin as dust and as white as snow, it just sounds amazing!
In fact, even if the princess didn't mention it, Xia Fan would refine some of the refined salt himself to satisfy his and Li's appetites. After all, coarse salt is really unpalatable. If you add too little, it will be tasteless. If you add too much, it will be bitter. Other impurities will also seriously affect the taste.
In addition, he did not plan to use chemical purification methods - coarse salt is at least edible, and eating it will not cause death. If some unexplained reactants are produced during the purification, it will be tantamount to poisoning himself. Therefore, recrystallization is undoubtedly the most suitable choice. Taking advantage of the relatively stable solubility of salt under temperature changes, we can first filter out impurities that precipitate faster, and finally evaporate the remaining water, leaving behind a relatively pure refined salt.
Of course, the accuracy of this physical purification method is limited, and it is still far from pure salt in the true sense, but at least it will not taste bitter.
Mo Yun stood on the shore, thoughtful.
Although she didn't know how to make salt, she could infer the general situation from the conversation between the two. The thing called the "salt field" in front of her was obviously an unprecedented method of making salt, and it was much better than the current method. many.
The imperial court will definitely be very interested in this technology.
So when Ning Wanjun looked at her, she nodded slightly, "If the salt pond can be promoted, Qiguo's treasury will surely be filled to the brim - His Majesty will definitely praise His Highness greatly for this."
However, what they didn't expect was that as soon as these words came out, everyone stopped what they were doing and looked at her.
Even Eunuch Li frowned.
Looking at this strange scene, Mo Yun couldn't help but take a step back.
What's going on? Did I say something wrong
"Your Highness...are you sure she is one of our own?" Xia Fan asked in a low voice.
"This is a misunderstanding." Ning Wanjun coughed twice, and then said seriously to Moyun, "I do not plan to report this technology to the court, let alone exchange it for a reward from the Holy One. Everything you see today is gold Xia Cheng’s secret, so no matter who it is, you don’t want to reveal this matter, okay?”
"Of course it's no problem." Mo Yun responded quickly, but his heart was full of doubts.
And one thing she knew very well was that after she said those words, the people around her became obviously wary of her.
Mo Yun suddenly felt a little bitter.
The two of them have been apart for too long, and even if the connection in the past remains, the interpersonal relationships around them have changed.
"Let's go back to the villa first," the princess said.
"I...can I have a few more words with Mr. Xia?"
The other party was under the leadership of the Ministry, and if there was no princess taking the lead, she would not be able to see him if she wanted to. Mo Yun has not forgotten the reason why she came here. Before she can get the exact result, she cannot be discouraged by this little accident.
"Okay." Ning Wanjun put on her shoes and socks again.
"You said he knows a lot, right?"
"According to his own words, he knows a little bit about everything."
This person... is quite cautious.
Since the arithmetic book could no longer be used as a breakthrough point, she could only start from the areas she was familiar with.
After Xia Fan came over, Mo Yun regained his composure and said, "Mr. , so I would like to ask for your opinion."
"Wait a minute," Xia Fan stretched out his hand to stop him, "didn't you just say that that was a secret of Qi State? I don't want to be wanted by the Ministry of Punishments for hearing this."
"That's... for outsiders." Mo Yun pretended to be calm and said, "Besides, I also saw the secret of Jinxia City just now, so I just treated it as an exchange."
Can this be exchanged? Xia Fan silently cursed, I think this is just an excuse.
However, he is indeed very interested in the research of the Ministry of Industry, which after all represents the highest manufacturing level of Qi State. "Okay, just ask."
Mo Yun knelt down and opened the wooden box that he had always carried with him.
In addition to some personal items, it is mainly used to store models of machine beasts.
This is also the most critical technology that she has mastered.
Mo Yun placed the built-in bronze four-legged beast on the sand and at the same time injected the energy from his body into it -
I saw the four-legged beast slowly standing up and taking steps forward from left to right!
"Oh?" Ning Wanjun exclaimed, "I remember this was just an idea of yours before, but now it has been realized?"
"If we just make it move, the Machine Building Bureau has already made a physical object that is equivalent to the size of an ox and a horse." Mo Yun said proudly, "But in terms of practical application, there is still a key problem that is difficult to solve."
At this point, she looked at Xia Fan, "I wonder if Lord Xia can help us overcome this problem?"