I am the cook, but I am Li Er's son-in-law

Although the amount produced is very small.

Only a small stack.

But after all, it was produced. This smoothness made the two little girls wonder if they were dreaming. They pinched each other's cheeks and felt the pain before finally confirming that it was true.

Wait until the next day.

After the two of them finished their breakfast, they took out this small dish of soda ash in the brocade box, blinked, and looked at Yin Xuan proudly: "Brother Zhengyang, we are very good this time, and we will get it soon." Out."

Yin Xuan was not surprised by this result.

The methods are all handed over to them, and these two little girls are not stupid, if they just follow the steps, there will be no major problems.

"Awesome!" Yin Xuan praised them, "If that's the case, then I'll teach you how to make colored glaze."

The two little girls immediately sat upright obediently, and the maids at the side also took out papers, pens and ink with winking eyes, and spread them in front of their own princesses.

The firing of glass is also not a very difficult process.

Quartz - that is, high-purity sand, adding relative proportions of soda ash and quicklime.

After melting and firing at high temperature, the glass will naturally take shape.

The most difficult thing here is the acquisition of "soda ash".

The two little girls listened carefully and took notes carefully—creatures like women are the least resistant to such shiny things.

After returning that night, they sent people to fire glass in the clay kiln that had been built in the garden.

At noon, they asked the maids to bring the words, and asked the eunuchs in the palace to prepare the quartz.

In the East Palace.

After Li Shimin finished his official duties, Empress Changsun looked at him and asked curiously: "Didn't the two of them already make the fireworks, what are they doing now?"

Li Shimin shook his head, and smiled lightly: "I don't know, I said I wanted to give me a surprise, and I did it mysteriously."

As he said that, he paused for a moment: "However. They plan to open a shop selling fireworks together with the store owner. To me, this is really a surprise."

"Your Majesty spoils them too much." Empress Changsun shook her head with displeasure on her face, "As a princess, how can I do this kind of business business myself."

Empress Changsun doesn't dislike selling fireworks, but she doesn't like Li Lizhi and Li Shu going off in person.

The royal family must have the majesty of the royal family.

Li Shimin smiled slightly, and put his arms around Empress Changsun's waist: "Guanyin maidservant, there is no need to be so disgusted, the shopkeeper usually gives them a profit, and there is always some intention."

"I would like to see what the store owner's real intention is to trick my two daughters into opening a fireworks store."

Empress Changsun sighed and was about to say something.

There was a bang.

The door was knocked open.

"Your Highness, please slow down."

"I communicate with His Majesty."

Qian Niuwei and the eunuch's flying voices rushed in together with Li Lizhi and Li Shu.

Empress Changsun raised her eyebrows, and was about to reprimand her.

"Father, father, look!" Li Lizhi had already raised the object in her hand, her eyebrows were flying high, and she said thankfully, "This is a surprise from us!"

Li Shimin raised his eyebrows.

Unexpectedly, just when this topic was mentioned, a surprise came to the door.

"Oh, what is it?" Li Shimin said, before he finished speaking, his eyes fell on the things Li Lizhi was holding up, his voice stopped abruptly, and his eyes were a little dull.

Empress Changsun also tilted her head back, but also failed to speak out the words of reprimand.

In Li Lizhi's hand, she was holding a whole piece of light green colored glass—there was a little copper in the quartz, and after firing, it would inevitably have some green color.

The shape is not regular, just like the stones that can be seen everywhere on the roadside, it looks very random, and there are some bubbles in it, which destroys the overall beauty.

But...it doesn't matter.

If someone else offered Liuli of this quality, Li Shimin would just flatter him and put it aside.

Although colored glaze is precious, it also depends on its quality. Glass of this quality is not as precious as gold.

But it was sent by Li Lizhi.

Thinking of Li Lizhi and Li Shu still busy in the garden these days, Li Shimin and Empress Changsun couldn't help but come up with an idea.

"This is what you made?" Li Shimin raised his eyebrows and asked.

Li Lizhi nodded, smiling all over her face.

Li Shimin was a little relieved: "The method of firing colored glaze is so complicated, I didn't expect you two to be able to bear your temper."

Glass is not a naturally formed substance.

It is a final product obtained after smelting and dozens of processes. The cost is high, the procedures are cumbersome, and the success rate is also a problem, which leads to the preciousness of colored glaze.

Glazed glass and glass can barely be counted as the same thing, after all, the main ingredient is silicon dioxide.

But they still have essential differences.

If glass is a foundation, then Liuli is a further process derived from the foundation of glass.

It's just that in this land, the technology tree is a little crooked, and the glass has not yet appeared, but in an accident, the craft of making colored glaze was pointed out.

complex?

Hearing Li Shimin's words, the two little girls looked at each other, frowning slightly.How could the father say such a thing, obviously put the material into the kiln, after it melts, it will naturally become colored glaze, it's not complicated at all.

"Father, it's easy to burn this thing, it's not complicated at all." After Li Shimin finished speaking, Li Lizhi spoke timidly.

Simple?
This time it was Li Shimin's turn to be dazed and confused. He had the idea of ​​building a palace with colored glaze, but Wei Zheng rejected it on the grounds that it was a waste of money and people.

Therefore, I have learned about the manufacturing process of colored glaze and determined that this is a very time-consuming and labor-intensive thing.

Why do my two daughters use the word "simple" to describe them?

In Li Shimin's view, firing colored glaze is much more complicated than making fireworks.

Li Shu could see the doubt in her father's eyes, she opened her mouth obediently, and explained in detail the research the two of them had done during this period of time.

Li Shimin was stunned.

Especially in the last words, after sifting the sand, and adding some alkali and quicklime, such a large piece of colored glaze can be fired.

If the research cost is not counted, the cost of simply firing this large piece of colored glaze is less than [-] Wen.

It made Li Shimin feel in a trance.

"Is this what the store taught you?" Li Shimin stared at the large piece of green glass with a lot of flaws, and his tone was a little light.

Li Lizhi and Li Shu nodded.

"Turn a stone into gold, that's probably it." Li Shimin sighed with complex eyes.