What is drunk Xiangju is not drunk Xiangju, Li Yuanjing is not interested.

It's not that I haven't been there, and there's really nothing fun in it, eating, drinking, bragging, walking girls and pretending to be forced, where can't you do these things? Do you have to go to Drunken Fragrance House?

Anyway, Li Yuanjing felt that he would not easily enter the drunken Xiangju until he found out the details of the drunken Xiangju.

"Go yourselves!" Li Yuanjing threw the token to Cheng Erzi, this token is universal, not human.

"Your Highness, are you really not going?" Cheng Er was stunned, if it weren't for the fact that he was going to take Li Yuanjing with him, they would have run away a long time ago.

"Don't go!" Li Yuanjing shook his head firmly.

"And we're leaving?" Fang Yiai cautiously tested.

Li Yuanjing waved his hand a little impatiently, why are these rabbit cubs so annoying?

After sending away these restless little rabbit cubs, Li Yuanjing sat on the chair under the gazebo, although it was under the gazebo, the scorching air was still very uncomfortable, and the heat waves kept rushing towards him, making his entire throat look a little dry.

It's a great time to have an ice cream or a chilled juice.

Thinking of this, Li Yuanjing closed his eyes and asked slowly, "Is there ice in the house?" ”

Generally, large households will store a large amount of ice cubes in winter for summer use, although Zhao Wangfu is not big, but the card is not small, theoretically there should be.

"Your Highness, there is no ......," the maid replied cautiously, with apprehension in her heart.

Outsiders only see that they have no worries about food and clothing, and they can be regarded as having face, and they may not be taken by the big people one day, and they have changed the fate of their lives since then.

But no one saw their hardships, and every thing they did and every word they said had to be carefully considered, otherwise no one knew when they would cause trouble.

"Concubine body see Your Highness!" Wang Xiaoyi, who hadn't seen Li Yuanjing for a long time, immediately greeted him after hearing the news of Li Yuanjing's return, but he didn't expect those few eye-catching goods to be gone, and he couldn't help but be happy.

Hearing that Li Yuanjing wanted ice, Wang Xiaoyi instantly comprehended and explained directly: "Your Highness, the palace was built in a hurry last winter, and it was already spring when the people in the palace entered, and they missed the best time to make ice. ”

"And how are you spending your days?" Li Yuanjing couldn't help but open his eyes, how did he come over without ice on such a hot day?

Ordinary people have bad skin and thick meat, even if they endure it, it will pass, but which rich family is not pampered, even Li Yuanjing, who can bear hardships and stand hard work, now feels a little unbearable.

Wang Xiaoyi was slightly happy in his heart, His Royal Highness finally knew that he cared about people!

A smile secretly appeared on his lips, and he said: "Your Highness, when it's hot outside, the concubine is in the house, it's not very hot!" ”

In the summer, almost every household is short of ice, even the Imperial Palace is no exception.

The ice stored in winter can only be used after half a year, even in a cellar with low temperature, after half a year of precipitation, only half of the ice cubes in a full cellar can be left.

Moreover, the temperature in these two years is generally higher than usual, and even in the cellar, by the summer less than half is left.

So even in the palace, you have to save a little in the past two years, Li Yuanjing vaguely remembers that when autumn was about to enter last year, the ice cubes in the palace were already short.

Li Yuanjing was inspired and asked with a smile: "Do you have saltpeter at home?" ”

"Saltpeter?" Wang Xiaoyi was stunned for a moment, and then shook his head: "It seems that there is not, there are no such stones in the concubine's house, except for medical books are medicinal materials." ”

"What about the bitter-smelling, cold, non-poisonous herbs?" Li Yuanjing thought about it, fortunately he remembered some of the characteristics of saltpeter, of course, Li Yuanjing also knew that saltpeter had many names in medicinal materials, but it was too long to remember, and he didn't know what it was called now.

"Xixian?" Wang Xiaoyi said subconsciously, and then shook his head violently: "No, Xixian smells bitter, cold, and has a little poison." ”

Wang Xiaoyi frowned tightly, trying to recall what he had learned in his life, born in a medical family, although he was not a famous medical family, but he was also influenced by this medical culture since he was a child, and Wang Xiaoyi also studied some basic medical books and medicinal materials.

"The concubine knows, there is a medicinal herb in the Huanglong soup that meets the situation that His Highness said......"

"What's it called?" Li Yuanjing hurriedly asked, he didn't care what the yellow dragon soup was, what he wanted was saltpeter.

"Yes......" Looking at Li Yuanjing's expectant mood, Wang Xiaoyi lowered his head a little shyly and said in a low voice: "It's human excrement!" ”

'Poof......'

Soar?

Li Yuanjing almost choked to death by his own spit, but he knew that the arrows were soaked in the golden soup for a while and taken to the battlefield, but anyone who was injured basically burped.

"What else?" Li Yuanjing asked a little angrily.

"I think of it, it's fire nitrate, the smell is bitter, cold, non-toxic, my grandfather said that this seems to be a kind of stone, and it is accompanied by gypsum, miscanthus and stone salt!"

"That's right! That's it! Li Yuanjing's dusty memory was instantly awakened, and he couldn't remember the others, but the mangs seemed to be the opposite, as for which one it was, it didn't matter, just buy them one by one.

Saltpeter is a good thing, if it weren't for the bad mathematics, physics and chemistry, Li Yuanjing would now want to get saltpeter up and then monopolize this business.

Of course, just because you don't study well doesn't mean you don't know anything.

For example, after this thing is processed, it can be used for artillery battles, and it will be so festive when the New Year comes.

It can also be used for potash and nitrogen fertilizer, which is a real fertilizer, which can turn the field into the field, as long as the irrigation project can be in place, the yield will be absolutely terrifying.

In addition, saltpeter can also be used to make dyes, and monochrome cloth can be used to make flower cloth, and the quality is better.

What is it? It's all money spent in vain!

"Let's go buy a few pounds of each and try it back!" Li Yuanjing forcibly endured his excitement and instructed Liu Hu.

The cloth only launched economic sanctions against the Maison from the clothing aspect, but this alone is far from enough.

And there are too many industries involved in the family, and Li Yuanjing can't have the energy to deal with them one by one, and at the same time, Li Yuanjing is a lazy person, and he doesn't want to be too tired.

Therefore, he formulated an outline for himself to sanction the family, mainly in two aspects, one is to enter the craftsman, and launch technological reform to gradually resist the role of civil officials, which is called the official route, and the other is from the economic point of view, too much is not taken into account, then from the four aspects of clothing, food, housing and transportation.

Although I don't want to admit it, I have to admit that in disaster years, it is often the family that stands up for the court, although every time they make their wealth skyrocket, and the court is helpless, they must also rely on and attach importance to the family.

It seems to be an unsolvable situation, but in Li Yuanjing's view, it is very simple, with saltpeter entering his sight, at most ten years later, this aspect of food can be fully dominant, and the family can be disintegrated at that time......