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Yang Susu continued: "Another technique is blowing glass. In general, glass workshops can only use glass to make dishes, ornaments and other things. However, our Yang family's glaze workshop is able to make exquisite glazed bottles, glazed pots, glazed hollow beads and so on. ”

"So powerful?" Cui Geng said a little strangely: "I heard that the ancestor of your Yang family is a member of the Great Sui royal family, how can you have these things?" ”

"Uh...... In fact, the technology of the ancestors of the Yang family was obtained from He Chou, the secretary of the Ministry of Industry of the Great Sui. The ancestors were kind to He Chou, and He Chou gave him a gift with the secret method of glass. Later, Sui destroyed Tang Xing, He Chou returned to Tang, and died soon after he became a master craftsman, and did not pass on his unique secret method of glaze. Therefore, now the glaze secret technique of the Tang Dynasty is greatly inferior to my Yang family, and the royal workshops are greatly inferior. ”

"That's right...... Hey? Broken! ”

As he spoke, Cui Geng slapped his head and said, "No, the secret recipe is easy to keep secret." But this blowing glass is a manual job, so Ling Zun won't do it himself, right? Are there many people who have learned this secret art? ”

"Actually, it's not a lot, there are six people in total, all of them are my father's subordinates, and they are loyal."

"Well, what loyalty?" Cui Geng said anxiously: "You send someone immediately, hurry up, and go to the house to see, is the so-called central and unique part still there?" ”

"Huh? Will they betray? ”

"Nonsense!" Cui Geng smiled bitterly; "Our opponent this time is not ordinary, not only can we steal the secret recipe in advance, but how can we miss the vital craftsman?"

Wang Yuanbao frowned slightly, and said, "Opponent? Could it be that he stole the secret recipe, not some thief? ”

"Of course not." Cui Geng sighed and said, "Don't hide it, I'm more than eighty percent sure that this matter was done by Li Longji, the king of Linzi." ”

"Huh? King of Linzi? Wang Yuanbao and Yang Susu changed color together.

Cui Geng waved his hand and comforted: "You don't have to be too afraid,." No matter how terrible the king of Linzi is, can he be terrible to come to Junchen? Can there be Zhang Changzong's brothers terrible? Now that I've been involved in this, there will definitely be a beginning and an end! ”

Well, as the famous Tang Ming Emperor in history, it should be more difficult to deal with than Lai Junchen and Er Zhang, but now, Cui Geng can only comfort them like this.

Of course, if you want to talk about guilt, Cui Geng doesn't have it at all.

In the final analysis, Cui Geng and Wang Yuanbao are not related to each other, and they have no friendship, why do they want to worship him as brothers, and they have to bother to help him so much?

used to use him to thread the needle to deal with Zheng Pusi, but now it is to work together to deal with Li Longji.

Li Longji stole the secret recipe and rebelled against the craftsman, there is no doubt that he fell in love with the huge profits of Liuli, so what Cui Geng wants to do is to hit his financial resources!

"What? Not only to revive the Yang family's glaze workshop, but also to make the glaze workshop of the King of Linzi fall into the water, this ...... Is this possible? Wang Yuanbao and Yang Susu were stunned after listening to Cui Geng's plan.

Cui Gengdao: "Of course, it's not easy, but it's man-made." You all use your brains and help me think about it. If a glazed workshop like the previous Yang family workshop appeared, how could he be hit with nothing? ”

Wang Yuanbao is difficult; "It seems that except for the use of the power of the government, there is no such possibility at all. In the past, the Yang family's glazed workshop was making money every day, if the Yang family's competitors really had this method, wouldn't they have used it long ago? ”

Cui Geng shook his head and said; "To deal with the King of Linzi, the power of the government must not be used. Let's not talk about whether I can win in the official face, I can't afford a reputation of "forcible grabbing". ”

"That's going to be hard."

……

The three of them discussed for a long time, but they didn't come up with any good ideas.

In the end, Yang Susu pouted and said, "If only we could make Persian glass...... It's a pity.,It's just thinking about it.。。 ”

"What? Persian glass? Cui Geng's heart moved.

Yang Susu said: "Even the glass sold by Persian merchants from the West may not be made in Persia. This kind of glass is similar to the nature of glass, but our glass is good at color, and other people's glass is good at crystal clear. ”

"Is that more expensive than glass or more expensive than glass?"

"Of course it's glass." Yang Susu quoted the classics and said: "The Book of Wei. The Biography of the Great Moon Clan contains: "Its countrymen and merchants are Jingshi, and they can cast stones from Yunneng for five-color glaze. So he mined the mountains and cast them in Beijing. That is, the luster is beautiful in the West, since then, the Chinese glaze is cheap, people no longer cherish. Later, in order to distinguish it, the five-color glass here was called glass. ”

Cui Geng said: "No, didn't you say that the glass is more crystal clear?" Why is it so colorful here? ”

Yang Susu said: "Later, we learned that the five-color glaze made by the merchants of the Dayue clan and the glaze shipped from the west are the same thing, but the raw materials are slightly different. Moreover, this kind of five-colored glass was only a flash in the pan, and for some reason, no one could burn exquisite multicolored glass anymore, and even ordinary glass could not be obtained, so it could only be sold in the West. ”

"That's ......" Cui Geng muttered: "How to deal with Li Longji, this official already has a general idea." ”

Wang Yuanbao's eyes lit up and said, "Does the eldest brother have a way to make glass?" The price of glass trafficked from Persia is expensive, and if we can make cheap glass, the price of glass will definitely plummet, and the king of Linzi will definitely lose all his money. ”

Cui Gengdao: "The general idea is like this, but making glass is not so simple, and let the official think about it. So be it...... Su Su first wrote to Ling Zun and asked him to send the craftsmen who made the glaze, and even the craftsmen who blew the glaze, to Chang'an. ”

The reason why Cui Geng said this is, of course, not pretending to be profound.

In fact, from a technical point of view, making glass is much simpler than making glass, nothing more than alkali, quartz sand and limestone, and the main processing method is firing.

As for the glaze, on the surface, it is glazed stone and glazed mother, but the glazed mother is a combination of a variety of minerals. Moreover, the glass refining method is very complicated, there are 37 processes of all sizes, which are called "water comes and fire goes", which is very difficult.

And the most important thing is that if you don't pay attention to the glass, the whole furnace will be scrapped, and it will not be able to be rerefined at all, and the cost is extremely high. Glass, on the other hand, is very easy to refine.

So, why did the ancient Chinese not make simpler glass instead of making glass? Is it that the Chinese are not as smart as the Westerners? Of course not.

In fact, if you consider this question together with porcelain, it will suddenly become clear. Why is it that in the West, porcelain is more expensive than gold, but Westerners can't make porcelain? Are Westerners stupider than Chinese? Of course not.

These two problems are actually one and two, two and one problems, and the key to the matter lies in the raw materials.

At that time, there was no porcelain clay in the West, so they used ordinary clay to fire porcelain, which can be regarded as hell if it can be fired porcelain.

The same is true for Chinese glassware, where soda ash, quartz sand and limestone can be found.

However, quartz sand in China is very different from quartz sand in the West.

Most of China's quartz sand is a continental sediment, and its purity is about ninety percent. Most of the quartz sand in the West is marine sedimentation, and its purity is more than 90%.

In this way, the glass made by the same technology is far less crystal clear in China than in the West. And without the advantage of crystal clear, the glass made in China will not compete with the colorful glass.

The reason why the merchants of the Otsutsuki clan were able to make multicolored glass at the beginning, but they couldn't make it later, may be that they accidentally got some quartz sand with extremely high purity, but they couldn't find it again.

Now, what Cui Geng wants to solve is the problem of raw materials.

Limestone is everywhere, needless to say.

Alkali is also easy to say, grass and wood ash water can be replaced. In addition, Tongbai County, Dengzhou is the largest producer of trona in China, and if you go to Chang'an East and West Market to find it, there should be something for sale. It's really not good, just send someone to Dengzhou for a trip.

The key is marine sedimentary quartz sand.

Cui Geng knows two origins, one is near Beidaihe and the other is near Hainan Island. It's not so difficult to find marine quartz sand, as long as you find the pure white sand.

Beidaihe knows the specific location, and it is said that it is the best choice. It is a pity that now, there is a big war with the Russian special service and the Que special service, and there are constantly Turkic stragglers bravely entering the territory of Datang, and the roads near Beidaihe are not quiet, which is not a good trade route.

Then you can only fight the idea of Hainan Island. The distance from Chang'an to Hainan Island is quite long, and it takes about seven days to rush 800 miles. It is impossible to return from the large-scale transportation of quartz sand from Hainan Island without two months. Coupled with the time to find quartz sand, it will take at least three months.

……

……

A few days after Cui Genggang sent people to Hainan Island, Wang Yuanbao hurriedly found him and said, "Big brother, can you make your glass earlier?" ”

"Huh? What's wrong? Don't your Yang family have an inventory of colored glass? Supporting it for a year and a half, there shouldn't be any problem, right? ”

"Originally, there was inventory, but the inventory was in Chang'an City. Before we found out the recipe was missing, the stock had already been bought. The existing glaze of the Yang family can only be used for less than two months. ”

Cui Geng's brows twitched, touched his chin and said, "This King of Linzi is really a last resort." He bought the glaze, and the Yang family did not have a new glaze to fill. After a long time, won't the Yang family's sales network be all taken over by him? ”

"Who's to say it isn't? Please think of a way to do it, big brother. ”

"By the way, how is the craftsman who blows the glass in Yang Chongyi's house? Have you been abducted? ”

Wang Yuanbao smiled bitterly: "Big brother is clever, three people secretly escaped. ”

"Fortunately, we have three craftsmen left who can blow glass, at least in glass blowing, we don't suffer." Cui Geng groaned: "It seems that the key to this matter now is to make the glass in more than a month...... But where do you find the right quartz sand? ”