"Yes, are you sure you want to do it?" Li Er asked suspiciously again.
"Your Majesty, you only need to prepare salt, stone mill, wooden bucket, clean water, wooden stick, cotton cloth, charcoal, funnel, iron pot, ten portions of each, oh no, a hundred portions.”
Qin Feng told him all the tools needed to make salt. These things were originally enough, but Qin Feng, who had always been cautious, wanted 100 portions.
Hearing Qin Feng mention another 100 portions, everyone's thoughts immediately returned to the morning when Ming De Hall made ice. The cold air produced by the 100 large wooden barrels of ice still made their feet feel cold.
The corner of Li Er's mouth twitched as he instructed,""Just prepare ten portions."
Actually, he had wanted to say one portion, but he was afraid that something would go wrong in the middle and affect the production of salt, so he took a compromise.
"Yes."
The eunuch bowed and left the hall, running to prepare.
Other than Qin Feng, they were all 70 - 80% full from this imperial meal. After the episode of salt production, everyone was not in the mood to eat. They wanted to see how Qin Feng made salt.
After the time it took to brew a cup of tea, the eunuch walked in and said to Li Er,""Your Majesty, the items that County Lord Qin used have been prepared and are waiting outside the hall.”
Qin Feng made an inviting gesture and said: "Your Majesty, please follow me outside the palace."
After all, the process was rather complicated and a fire was needed. Naturally, he could not choose an empty place outside the hall.
All the materials and tools that Qin Feng needed were placed in different categories. There were more than 800 catties of poisonous salt cubes.
The salt is dark brown in color. Qin Feng picked a few small pieces and placed them into the stone mill. Immediately, a guard took his place to shake the stone mill.
After all, Qin Feng was the main force in salt production. There would be people who would help him with all these rough and tiring work.
Brown salt powder flowed out from the edge of the stone mill. Qin Feng carefully poured the powder into a wooden bucket filled with clean water and stirred it with a wooden stick.
In order to witness this great historical moment with his own eyes, Li Er moved closer to Qin Feng and stared straight at him, afraid that he would miss a detail.
His seriousness was far greater than when he was making ice in the morning. After all, making ice could be replaced by the method of storing ice in winter. Only Qin Feng knew how to make salt.
Even Li Er was looking forward to it. The remaining Cheng Yaojin and the others also surrounded Li Er. As for those who wanted to see the eunuch, they had evil intentions but no guts.
Qin Feng continued to add mineral powder into the water, allowing the salt to fully fuse into the water. In a short while, the solution reached saturation.
Qin Feng took a new wooden bucket and covered it with two layers of cotton cloth. He poured the saturated solution into the bucket.
As expected of the palace, the quality and feel of the cotton cloth were excellent. The salt made in this way would definitely be purer.
After pouring all the saturated solution into the new wooden bucket, Qin Feng gently tore off the cotton cloth and placed it on the ground.
When everyone saw that the cotton cloth was covered in grayish-black dregs, a question arose in their hearts. Could this be the impurities that Qin Feng had mentioned?
He looked into the new wooden bucket again. The water inside had turned brown and the color had become much lighter. This method was indeed effective.
Cheng Yaojin saw this change and couldn't help but nod and comment,""So that's how it is. Then will it become clear after repeated a few times?”
"Oh? Then Uncle Cheng, why don't you give it a try?" Qin Feng smiled and pointed at the brown solution in the new wooden bucket.
"Your Majesty, Old Cheng won't stand on ceremony then. I hope Your Majesty can bestow the first barrel of salt to me, hehe.”
No wonder Cheng Yaojin took the initiative to volunteer. She thought he wanted to help, but she didn't expect him to have ideas about salt.
Cheng Yaojin followed Qin Feng's example and covered the wooden bucket with two layers of cotton cloth before pouring the brown solution into it.
As expected, the filtered solution became lighter again. This salt-making method was just so-so. It was just a little waste cotton cloth.
In order to get good salt, Cheng Yaojin rolled up his sleeves and worked hard. Even Qin Shubao, Yuchi Jingde, refused to help.
"These bastards must have heard what I said just now and want a share of the pie. There's no way they can do that.”
Cheng Yaojin cursed in his heart, but he became even more motivated.
After pouring it a few times, everyone realized that something was wrong. At first, they could see that the brown color in the bucket had become lighter, but later on, there was almost no change. There was almost no black residue on the cotton cloth.
"Old Cheng, can you do it? If you can't, then it's me. My hands have been itching for a long time.”
His words caused the crowd to burst into laughter, but it also made Cheng Yaojin blush.
"This…Nephew, I have done the same thing many times, but the water is still light red. Why isn't it clear?”
Cheng Yaojin was not the only one who asked this question. He was also asking the same question as everyone else.
"Haha, Uncle Cheng, it'll be the same even if you cook it ten thousand times.”
Qin Feng picked up a piece of cotton cloth and showed it to them under the sun.
Cheng Yaojin looked at it carefully and said in confusion,"This is cotton cloth. There's nothing strange about it.”
"Look at the sun. Do you see some extremely fine holes?”
Seeing that everyone picked up the cotton cloth and tried it, Qin Feng continued,"This cotton cloth is like a sieve. When the water flows through, the material larger than the holes in the cotton cloth will be left behind, which is why there is black residue.”
"After filtering a few times, the impurities have basically been filtered clean. The substances in the water are smaller than the pores of the cotton cloth. It will naturally be ineffective to use the cotton cloth again.”
At this moment, Li Er also played the role of asking shamelessly. He asked,"How do we detoxify them?"
Qin Feng smiled as he took a large funnel and signaled the guard to smash the charcoal. Qin Feng wrapped the charcoal in four layers of cotton cloth and stuffed it into the funnel, squeezing it tightly.
Then, he found a shelf according to the local conditions, fixed the funnel on the shelf, and poured the solution into the funnel.
The light red solution slowly flowed down the funnel through the cotton cloth and charcoal. What flowed out was actually light green.
These two things were considered relatively common, but no one had ever used them together. It turned out that charcoal could also be used to make salt.
"Amazing, cotton cloth and charcoal can actually turn light red water into light green.”
"Charcoal has such a use? I used to use it to keep warm. It was simply a waste.”
"Since the cotton cloth is useless, why is there still cotton cloth in the funnel?”
This book comes from：m.funovel.com。