Yunchao's method of purifying refined salt is very simple.
First, salt mixed with a large amount of sediment is dissolved in water to create a highly concentrated brine.
Then filter it with linen and charcoal to remove water-insoluble impurities such as sediment.
Then pour it into a large pot and cook it.
After the water is exhausted, what you get is crystallized table salt.
The method is simple and the conditions are crude, so the salt obtained will naturally not reach the level of refined salt in later generations.
This method can only filter out impurities that are insoluble in water. As for soluble impurities such as magnesium chloride and sodium sulfate, Yunchao has nothing to do.
Of course, the ancients were not stupid. The salt they sold had been processed to a certain extent and did not contain many toxic impurities. As long as the water-insoluble impurities were filtered out, there was basically no harm to the human body.
Yun Chao's entire process of purifying table salt was done in front of all his subordinates, and he even directed them to do it.
This method has no technical content. To put it bluntly, it is a process of dissolution, filtration and evaporation. There are people coming in and out of the house, so even if you want to keep it secret, you can't keep it secret.
It is impossible for Yun Chao to do it alone and not let his boys do it. Does he boil salt every day?
In fact, the most important thing is not secrecy, but sales. Without certain strength, once the government knows about it, it will be absolutely ruined!
Watching the dusty coarse salt turn into fine snowflake white salt, a group of boys couldn't believe their eyes.
In Yunchao's opinion, these table salts are far from comparable to the refined salts of later generations.
However, this group of boys has never seen or heard of it!
Even Wang Shitou, who had seen refined salt in the city, was amazed by Yun Chao's ability. In his opinion, the kind of refined salt that cost one tael of silver per pound was slightly inferior to Yun Chao's table salt. A bargain!
Lin Youniang and Aunt Wang were also shocked and speechless, with little stars in their eyes.
Only Yun Chao was a little dissatisfied. The refined salt was not as white or fine as the refined salt from the previous life. After licking it, he felt that the taste was not so pure.
"Hey, forget it, if the conditions are not met, just make do with it."
Yun Chao sighed sincerely, almost making the others angry to death.
That is to say, everyone doesn’t know what pretending is, otherwise they would all give Yun Chao the middle finger and name him Old Versailles!
Your salt is so refined, so just take it as it is. If this is not showing off, what is showing off?
"Come on, come on, don't be polite, everyone. When you go home tonight, each person will pack two kilograms, so your family can try it too."
Yun Chao was unexpectedly generous, but was opposed by Wang Shitou.
Others didn't know that the stones were different. He and Yun Chao bought salt when they went to the city and knew how expensive refined salt was.
"Second brother, I don't want it. This is better than the one tael of silver per pound of salt in the city. I won't eat it. If you eat it, you will lose your good fortune!"
Why Yun Chao trusts Shi Shi the most is because he knows the importance, knows what he should want and what he should not take, and he is also the most loyal.
In fact, Yun Chao really didn't take these salts seriously.
If others sell it at a high price, you may not be able to sell it at a high price.
The key is sales. No matter how good the product is, it won't be worth much money if it's not sold.
All the boys were very happy when they heard that Yunchao told everyone to take salt home.
But when Shitou heard that the salt in the city that was not as good as Yunchao could be sold for one tael of silver per catty, everyone was numb and refused to take anything!
Finally, Yun Chao gave the order, and everyone took half a catty.
There are more than a hundred kilograms of purified salt, and half a kilogram for each boy is nothing.
If you can really find a safe market, there are a lot of low-quality cheap salt in the city. You can just buy it and purify it yourself. You can get as much as you want.
When people in the Wu Dynasty sold things, they usually packaged them in oiled paper. There was a lot of this oiled paper in the sacks containing private salt, which came in handy.
After dinner, when all the boys went home, they each held half a catty of salt in their hands and walked cautiously, for fear of making any mistakes.
There was another sensation in Wolong Village.
"What, Yun Er actually gave half a catty of salt to each of his boys?"
"What, what Yun Erfa sells is refined salt that only the nobles in the city can afford?"
"What, Yun Erfa's salt is one tael of silver per catty in the city?"
"What, Yun Er's salt is better than that kind of refined salt? You can't buy it for a pound of silver?"
"..."
After some doubtful villagers ran to take a look, they all fell silent.
Whiter than any salt I have ever seen!
Thinner than any salt I have ever seen!
I don’t know if one pound is worth one tael of silver, but I’ve never seen it.
Not only have I never seen it, I’ve never even heard of it!
After Lai Zhicheng's sister-in-law heard about it, she also ran to see Xiqi.
As soon as I got home, I started chattering and talking vividly.
The salt in Yun Er is so white.
The salt in Yun Er is so fine.
Yun Er's salt is so beautiful...
The more she talked, the more excited Lai Zhicheng's sister-in-law became. There was a seductive charm on her face, as if she was a newly married lady, which made Lai Zhicheng swallow his saliva.
While swallowing his saliva, Lai Zhicheng got angry.
Sister-in-law, open your mouth, Yun Er, shut up, Yun Er, besides Yun Er, can you say anything else?
Yun Er!
It's Yun Er again!
Are you a boy sent by God to fight against me?
First you made me lose face, and now you steal my sister-in-law, you really deserve to die!
Unfortunately, Lai Zhicheng's sister-in-law was in excitement and did not notice how ugly her brother-in-law's face was.
"Sister, brother-in-law, how about I go talk to Yun Er and let's get some refined salt back to try?"
Lai Zhicheng's nose was almost crooked, and the wounds on his body suddenly hurt again.
"Hmph, do you think that guy Yun Er will give it to you?"
Lai Zhicheng's sister-in-law curled her lips charmingly: "He dares! But if he doesn't give it, we can buy it..."
Lai Zhicheng couldn't bear it anymore and pointed at the door: "Get out, get out!"
Lai Zhicheng's sister-in-law has never been so angry. Her brother-in-law, who has always been kind to her, dares to hurt her. Humph, just go out when you go out. They go to Yun Er and find a way to taste him...
The taste of refined salt!
