At the beginning, his wife came to him, and he became rich by selling kidney treasures.

Sweetwater Town?

Ren Hao couldn't help but be stunned, thinking that this Hu man actually knew how to give names.

The old pavilion chief told Ren Hao that the reason why this town got this name is because the well water dug here is cool and sweet, and this town is also a must-pass place when passing through the countries in the Western Regions. Both caravans and bandits will stop here to rest and replenish supplies.

There is also an unwritten rule in the town that you are absolutely not allowed to fight here, and the residents living in the town will not ask about the origins of the merchants.

As for the residents living in the town, in addition to the Hu people there are also quite a few Wei people and a small number of Han people. Everyone here fulfills their duties and lives happily together.

Ren Hao couldn't help but nod and asked, "Old Pavilion Master, you know a lot, don't you?"

"Where do you think I learned the foreign language? I learned it when I traveled to the Western Regions when I was young." The old pavilion chief couldn't help but show off.

But after the fart, there was a long sigh.

When he was young, he traveled to the Western Regions and did many evil things. Now that he was old, he returned to the Western Regions and became a slave. This could be considered a punishment from God.

The Hu boss found an inn to rest for two days. As for Ren Hao and the others, he treated them like animals and drove them directly to the stable in the backyard, where they ate and slept with the animals.

Just when Ren Hao was lying down on the haystack and preparing to have a good sleep, Ma Min came over.

He slapped the shed pillar with the whip in his hand and shouted to Ren Hao and the old pavilion chief: "The master wants to see you two, come with me."

Ren Hao naturally knew why the Hu boss wanted to see him, so he stood up without hesitation and pulled up the old pavilion chief who was confused.

When the old pavilion chief learned that Ren Hao wanted to drag him to make fine salt, he immediately rolled his eyes and said, "You kid, don't you sincerely want to harm me? How...how can I make fine salt!!!"

Seeing the old pavilion chief's excited look, Ren Hao waved his hand and said: "You just need to help me, and leave the salt production to me."

The reason why he wanted to rescue the old pavilion chief and let him make fine salt with him was also to let him cover for himself. He didn't want the method of refining fine salt to be learned by the Hu people.

Ma Min took Ren Hao and the old pavilion chief into one of the guest rooms on the second floor.

"Kneel down."

As soon as they entered the door, Ma Min kicked the two men, forcing them to kneel down to the Hu boss.

The old pavilion chief knelt down naturally, but Ren Hao stood straight without bending his knees.

"Damn it, I told you to kneel down but you didn't understand, right?" Ma Min immediately raised the whip in his hand.

But Ren Hao was not afraid at all and said, "I kneel only to the heaven, the earth, my parents, and the emperor I serve. As for you asking me to kneel to your Hu master, you can dream on."

"You..." Ma Min widened his eyes in anger and raised the whip in his hand to hit Ren Hao.

But the Hu boss suddenly waved his hand and scolded the Ma people for their behavior.

"The master is really too presumptuous. If he is not properly disciplined, I don't know how he will be able to act so recklessly in the future." Ma Min said to the Hu boss.

"Other people can make fine salt, can you?" asked the Hu boss.

"I can't do that." Ma Min shook his head and his voice became lower.

"Since you can't do it, then just show him some respect. We still need him." The Hu boss glared at Ma Min.

"Yes." Ma Min nodded without daring to disobey, looking as if he knew he was wrong.

"Let them both sit down." The Hu boss waved his hand.

Although Ma Min was unhappy, he still did as he was told and moved a stool for Ren Hao and the old pavilion chief.

Ren Hao sat up carelessly without even saying thank you.

However, the old pavilion chief next to him thanked the Hu boss in Hu language with an extremely flattering look on his face.

"Can you make fine salt for me now?" the Hu boss asked straight to the point.

The old pavilion chief next to him immediately translated the words to Ren Hao.

Ren Hao nodded and asked the Hu boss to buy him a piece of silk cloth, five utensils, three loads of firewood, and three pounds of coarse salt.

This vessel is used to melt coarse salt.

The silk cloth is used to filter salt water to remove impurities.

Firewood is used to boil and refine salt.

After the Hu boss brought everything Ren Hao needed, Ma Min and the two Hu guests watched Ren Hao in the yard, wanting to take the opportunity to learn how to make fine salt.

Ren Hao was not afraid of them learning, so he just let them watch.

In order to confuse them, Ren Hao deliberately asked the old pavilion chief to scrape some saltpeter foam off the wall. After boiling the water in the pottery jar, Ren Hao deliberately grabbed handfuls of coarse salt in front of Ma Min and the others. Finally, when they were not paying attention, he pinched another handful of coarse salt in his hand.

After pouring the coarse salt into the boiling water in the pottery jar, Ren Hao grabbed a handful of saltpeter foam and pretended to pour it into the pottery jar. While the old pavilion chief deliberately blocked the pottery jar, Ren Hao poured the coarse salt in his left hand into the pottery jar, and hid all the saltpeter foam in his right hand into his sleeve.

"What are you blocking? Get out of the way." Ma Min pushed away the old pavilion chief who was in the way and asked Ren Hao what he had thrown into the pottery jar just now.

"Oh, you're talking about this." Ren Hao handed the jar of saltpeter foam to Ma Min, and told Ma Min about the saltpeter foam he had just added into it.

"Are you sure?" Ma Min frowned doubtfully.

"Believe it or not." Ren Hao ignored Ma Min and stirred the pottery jar with a wooden stick.

After the coarse salt was completely dissolved in the water, Ren Hao spread out the silk cloth and poured the salt water on it.

Modern production of fine salt uses solvents to separate impurities, leaving only refined salt.

But Ren Hao couldn't do that, so he could only use silk cloth to filter out the impurities in the salt water over and over again.

Those small particles stuck to the silk cloth are the impurities in the salt.

After all the impurities were filtered out, Ren Hao then placed the salt water on the fire to bake.

As the salt water continues to evaporate and concentrate in the pottery, the salt concentration will continue to increase.

When the brine in the pottery jar is about to evaporate and the salt concentration reaches saturation, the salt will appear in the form of crystals.

The salt at this time cannot be called fine salt, it can only be salt crystals.

Salt crystals must be slowly dried to completely dry out the moisture in the salt crystals before they can become fine salt.

Moreover, the temperature for drying salt crystals must not be too high. Once the temperature is too high and the salt crystals are damaged, the fine salt will become extremely bitter and inedible.

During the process of drying the salt crystals, Ren Hao did not tell Ma Min and the others, but only told them that the fine salt had been produced. While they were calling the merchant boss, Ren Hao used a low fire to dry the moisture in the salt crystals, and the production was completed.

Ren Hao poured the dried fine salt in the can into a plate. After purification, only about five taels of the three kilograms of coarse salt were left.