Early in the morning, Mrs. Zhang carefully scooped the dark liquid in the vat into a wooden barrel covered with double linen cloth according to Li Qian's request, for fear of spilling a drop.

Because Li Qian said that every drop of water is salt.

After a while, the linen cloth was covered with gray-black impurities, and the water in the barrel was not that dark anymore.

"Li Qian, can we put it in the pot and cook it now?" Ms. Zhang couldn't help but ask.

She was really looking forward to witnessing the birth of stone turning into salt.

"It's still early. Continue filtering and use four layers of linen." Li Qian said.

He didn't mind telling Mrs. Zhang how to boil salt. After all, it was some heavy work, and he wouldn't let Yun Niang do it.

As for whether Mr. Zhang would reveal the method of boiling salt, he was not worried at all.

The method of boiling salt is actually very simple. The key is that you need salt ore.

Besides, he believed that Zhang paid more attention to this matter than he did.

Mrs. Zhang carefully covered another wooden barrel with four layers of linen and carefully poured the filtered salt water into it.

After filtering it several times, the color of the water changed from dark to light brown, and no impurities could be seen anymore.

Li Qian then asked Mrs. Zhang to pour all the water into the pot and boil it.

As the heat boiled, the water in the pot gradually condensed into layers of salt crystals.

Mrs. Zhang was also overjoyed and couldn't help but want to try some.

"This is still poisonous. If you are not afraid of death, go ahead and try it." Li Qian said at this time.

When Mrs. Zhang heard this, she was so frightened that she retracted her hand.

"Then what to do next?"

"You also need to dissolve the water once to dilute some of the invisible ingredients inside, and then filter it again with charcoal to remove the invisible and poisonous things. The salt you boil out is truly edible salt." Li

Qi'an Road.

"Charcoal?" Zhang was stunned. She had never heard that charcoal could detoxify.

But she didn't dare to doubt what Li Qian said.

"Charcoal doesn't detoxify, but it can absorb some harmful substances." Li Qian explained, not caring whether Zhang understood it or not.

As for the charcoal, he had already asked Dahei to make some.

Immediately ask Mrs. Zhang to pick up the salt crystals in the pot and dissolve them in water.

While waiting, he asked Zhang to pound the charcoal, wrap it in four layers of linen cloth, make a simple funnel, and stuff the wrapped charcoal tightly into the mouth of the funnel.

Once the salt crystals are dissolved, start pouring them into the funnel.

After a while, a stream of light blue liquid slowly flowed out.

Li Qian dipped a little and tasted it. Well, it was good. After boiling it, it should be pure table salt.

Generally, there will be impurities such as nitrate, phosphorus and potassium in salt mines, which can kill people, so these impurities must be removed.

Of course, there are not so many tools in this world that allow you to remove these impurities. You can only use this old-fashioned method of repeatedly filtering and boiling.

The method is crude, but it works.

Then pour the water into the pot and boil it. You can clearly see the snow-white layer of salt formed on the bottom of the pot.

When the water dried up, Mrs. Zhang couldn't wait to take a small piece and put it in her mouth.

Although her hands were burning red and her mouth was full of salty taste, Mrs. Zhang was already in tears.

Li Qian really didn't lie to her, he really refined the salt.

Moreover, these salts are many times stronger than those coarse salts that are not available for purchase.

This is real fine salt, snow-white fine salt.

Then she knelt down directly towards Li Qian.

"Li Qian, thank you for trusting me and teaching me how to boil salt regardless of past suspicions. Don't worry, I will never let anyone know about this method. From now on, I will be born as a member of your Li family and die as a member of your Li family."

The ghost!"

Li Qian was frightened and said, "Get up quickly. You are born as a member of the Li family and die as a ghost of the Li family. Don't talk nonsense."

He didn't have the slightest idea about Mrs. Zhang. He taught Mrs. Zhang how to boil salt just to save himself trouble, and he didn't want Yun Niang to have to work hard. Zhang's reaction must have been too great.

Mrs. Zhang also came to her senses, and because she was so excited, what she said was indeed inappropriate.

Of course she didn't dare to have any thoughts about Li Qi'an. This kind of person was not something she could think about. She also knew her identity. Her original intention was to stay in Li Qi'an's house as a servant, but her words got sidetracked for a moment.

She also stood up with her face flushed, "Li Qian, what I mean is that from now on, I will be your servant. I will do whatever you and Yun Niang ask me to do."

"I said, there is no need to be a servant. You just want to stay in our house as long as you like. Anyway, there are still many things that you need to do in the future." Li Qian waved his hand, "Okay, you can clean up this place.

I'm going to go out and get some fresh air."

As soon as Li Qian came outside, he saw Ma Tiezhu running over in a hurry.
Chapter completed!