"How much do you know about the Changsun and Li families? Tell me about them, mainly about their pillar industries."

"Why are you asking that?"

Zhu Guichen looked at Wang Zheng in surprise and asked, "You don't really want to take revenge on them, do you?"

"It's just a game. I've made it clear just now. They don't care about it themselves. Why should adults worry about them?"

"Games are bullshit. They don't know you, but our family doesn't know you either. What will happen to the two families if you make a move? You don't care about hundreds of millions of coins, but your game is a serious matter for others. No matter how great the two families are, they are still mortals and can't stand your magic tricks.

This matter has been agreed by the Queen and His Majesty, you have to think carefully, if you go too far, the two nobles will not forgive you, you should at least think about your family, right?"

Zhu Guichen had no other choice but to bring up Li Zhi and Wu Zetian, and also talk about Wang Zheng's family, just hoping to dissuade Wang Zheng from thinking of revenge.

"What you are talking about is their foundation. What I want to know is their pillar industries, which are the two businesses that make the most money."

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As long as the aristocratic families have land, they can ensure their own stability. This is the foundation. However, if they want to maintain their status quo, they must have big and profitable businesses. Otherwise, relying solely on land and the court's salary will not be enough to sustain their huge expenses.

After a while, Zhang San said, "It's all melted. What should I do after I take it out?"

"Okay, thank you for telling me, sir. Go and have a rest first. Come back when you leave. I will give the queen a secret letter by then."

Wang Zheng thought for a moment and said, "Stir it vigorously with an iron rod, then drip it into the water little by little."

Bring in two loads of charcoal, and have one load ground into charcoal powder. Then prepare shells, bellows, iron tongs, clay jars, silk cloth, and plenty of water. Remember to keep it as secret as possible."

Wang Zheng laughed and said, "There's something even more amazing. Find something to hit the big head with, and I guarantee it won't break no matter how hard you hit it."

"Use high heat to boil the water. Keep boiling it. When the water in the pot is reduced, add more water to boil."

Zhang San reached his hand into the water, touched the smooth and warm glass drops, and immediately grabbed a handful out.

"Salt, iron, and jewelry." After repeating it several times, Wang Zheng said to Zhu Guichen:

"Pour the charcoal powder into the jar and stir it vigorously. Then filter the water with silk cloth. Do this several times until the water becomes clear."

"I don't know. Let's try it with one ounce of white flour, one ounce of shell ash and one pound of sand."

Knowing that it was working, Li Si pulled the bellows more vigorously.

The glass drop itself was a bit green, but under the candlelight, it had some other colors. Wang Zheng was not interested, but Zhang San and Li Si couldn't take their eyes off it.

As for the Li family, they are in the business of gold, silver, pearls and jade. They have several big shops in Chang'an and make considerable profits.

Zhu Guichen thought for a moment and said, "Land is the most important thing for the noble families. Since you invented vermicelli, although the queen spent money to stabilize the grain price last year, the land price still fell by more than 20%. They have been seriously injured. How are you?"

This is something that everyone in Chang'an knows. As for whether there are other deals going on in secret, that is not something our family can know about."

To make one load of charcoal powder, Zhang San and Li Si used up a whole tank of water.

Seeing that Wang Zheng was determined to make trouble, Zhu Guichen knew that he could not persuade him, and he did not want to ruin his relationship with Wang Zheng, so he had to tell the truth: "The Changsun family is mainly engaged in the salt and iron business, and has been doing it for decades. The profits are so high that even His Majesty and the Queen are jealous.

"Don't lose your soul. Didn't you see this thing coming out? It's just a pile of sand."

As for the jewelry, Wang Zheng immediately asked someone to call Zhang San and Li Si in.

It should have been successful. Wang Zheng was not very interested and said to Zhang San weakly: "Now you can take the things out and have a look."

Zhang San nodded and agreed: "Not only is it beautiful, it's also magical."

Coal plus blast furnace, charcoal plus salt mine, these two methods can increase the output of salt and iron by a large margin, and the prices of salt and iron will inevitably plummet. If Wu Zetian had obtained these two methods, she would have dealt a heavy blow to the Changsun family.

After everything was ready, Wang Zheng asked Li Si to pull the bellows hard to increase the temperature inside the furnace.

"Zhang San, find someone to build a furnace in this room, ask the bricklayer to heat two large crucibles with clay, and ask the blacksmith to make an iron plate with many small holes under it.

After all the water has been boiled off, you will get about two kilograms of white flour, which is soda ash.

"Li Si, go to the river and fetch me a load of fine white sand. Remember to make sure it's dry sand."

"Burn the shells into ashes, mix them with flour and sand, put them in a bowl and put them in the furnace to burn."

Zhang San was stunned for a moment and asked, "How much sand, flour, and shell ash should be put in?"

A pound of sand can produce not much glass liquid, but Zhang San still dripped it fifty or sixty times before all the glass liquid was dripped into the water.

"Once everything has melted, use tongs to take the bowl out."

Except for the crucible, it didn't take long for everything Wang Zheng wanted to be prepared.

After adding all the water into the earthenware jar, Wang Zheng asked them to cook it slowly over low heat, stirring it at the same time to prevent the pot from getting stuck.

Li Si couldn't hide his smile and said naively, "But it's really beautiful!"

"I know my limits. If you don't want to talk more, I will send someone to Chang'an to inquire."

Not long after, Zhang San exclaimed: "It's melted, it's melted, the sand has melted."

The two men found a hammer. Zhang San hit it carefully, and when he found that he really couldn't break it, he gradually increased his strength. Finally, Li Si tried his best, but still couldn't break it.

"Just give the little head a light hammer and see how it goes."

This time, the glass was smashed easily into pieces, turning them into a pair of tiny slags.

The speed at which it exploded was so fast that neither of them could react. Zhang San rubbed the powder in his hand and asked in confusion, "Master, what's going on?"

Wang Zheng was about to explain when Wang Ying's voice came from outside, "Brother Zhong, Brother Zhong, I heard that you were beaten up. How are you now?"