Seeing that his brother Li Shimin and nephew Chengqian were full of praise for this sour plum soup.

Li Yuanji also has certain expectations.

It's just that......

When it was Li Yuanji's turn, Qianqian said, "There are only two cups left in this room, I'm afraid I can only make two cups!"

Hearing this, Li Shimin was stunned: "The last time I came, didn't I still have a lot of cups?"

He could clearly remember the gathering before Qin Fan's three disciples parted.

Everyone is drunk and smoky, how can there be a lack of cups?

Qianqian frowned and said, "It was all broken a while ago! There are only two left!"

Li Shimin patted his head, indeed, several people were drunk before, and they didn't know how many cups they had broken.

So he said, "I'm familiar with the kitchen, and I might have missing cups!" I'll look for it."

Qianqian took a step across, stopped in front of Li Shimin, and insisted.

"There are only two cups left!"

Hearing this, Li Shimin also understood what the other party meant.

Where is the lack of cups!

is clearly trying to export evil anger for his son-in-law.

Seeing this, Li Shimin smiled and said:

"Since there are no cups, it's okay to get a bowl!"

Hearing this, Qianqian turned her inquiring gaze to Qin Fan.

Qin Fan nodded lightly.

In his eyes, Li Yuanji is clearly a gambling and bad-tempered child.

Although he is older, his personality is extremely sensitive.

Where do you need to be angry with such children?

After a while, Qianqian came back from the kitchen.

But what was taken out was a large bowl.

Li Yuanji looked at his brother with an inquiring look:

Are you going to let me use this to drink sour plum soup?

Li Shimin replied with an apologetic look:

Let's go! Who made you lose your temper and make people unhappy!

Get! The royal brother also turned his elbow outward.

Li Yuanji was extremely aggrieved, but at this time, Leng Nuan knew that he could only comfort himself.

I'm here to find out the news this time, and I'm enduring the humiliation now for a bright future!

When you pick up the big bowl, it's a mouthful.

But this sour plum soup is really sweet and sour, so enjoyable!

Especially this ice cube is the finishing touch!

Well? Ice cube?

"June day! You're a 10,000-year-old county magistrate who actually used ice!"

"It's so angry!"

Hearing this, Li Shimin hurriedly pulled Li Yuanji's sleeve and asked him to sit down.

Without him, this question was asked by him and his eldest grandson Wuji at the beginning.

Not only did he ask, but he was also choked by Qin Fan.

Li Yuanji's thoughts, Li Shimin is naturally clear.

The other party used ice cubes in such a season to reprimand them for their extravagance and waste.

The people are still worried about their livelihoods, but you, the county lord, use ice cubes extravagantly, what kind of system is this?

But the point is that Qin Fan's ice cubes have not been cellared from winter to the present!

Rather, he made it himself out of saltpeter!

And even the saltpeter was made by himself.

Therefore, if Li Yuanji questioned Qin Fan with this, he would only be slapped in the face.

And it crackled!

However, Li Yuanji ignored the kindness of the imperial brother.

He stood up and pointed at the ice:

"You can use ice cubes in this house! It seems that a lot of people's fat and people's ointment have been looted!"

Li Shimin supported his forehead, and he could already predict the situation behind.

Sure enough, Qin Fan sneered at each other:

"When I saw the ice, I thought it was people's fat and people's ointment."

"You're amazing!"

Seeing that Qin Fan still dared to refute, Li Yuanji immediately said:

"Do you know how much it will cost to store this ice cube from the cold winter to the current June?"

"Just what we drink, it's enough for an average family of five to have no worries about food for a year!"

"In other words, your cup of plum soup with ice cubes is the people's ration for months! You're going to go down your mouth!"

Hearing this, Qin Fan glanced at the big bowl in front of Li Yuanji, and now only half of it was left.

As for the other half, everyone present knows where it went.

Qin Fan pursed his lips: "Before you say this again, wipe the sour plum juice from the corner of your mouth."

Li Yuanji was embarrassed when he heard this.

Indeed, he was not very convincing.

It's just that he finally found an opportunity, and he didn't want to give up like this.

So, casually wiped the corner of his mouth with his sleeve, and said:

"Don't change the subject! I asked you if you drank it safely?"

Qianqian couldn't help it: "If you don't feel at ease, you can not drink!"

When Li Yuanji heard this, he couldn't help but argue:

"I just ignored this before!"

"Where is your sour plum soup, that bright red juice is clearly the blood and tears of the people!"

"You're talking nonsense!" Qianqian was furious.

"Where did I talk nonsense? In this way, you enjoy life with the fat of the people and the anointment of the people, are you not riding on the heads of the people and doing a blessing?" Li Yuanji scolded.

"I'll tell you, my son-in-law made these ice out of saltpeter! The cost is only a few dozen cents!"

"And all the expenses are also taken from the money taken by the child!"

"You say that Gongzi abuses the people's fat and people's ointment, don't you mean that the court is not?"

Hearing this, where does Li Yuanji believe it!

In the middle of summer, how could this ice cube worth a thousand gold be made of saltpeter that could be purchased with just a few tens of copper plates like the little girl's mouth?

"Don't try to fool me!"

"If this ice cube could be so easy to make, how would those rich families spend a lot of money to build ice cellars?"

Seeing this, Qianqian took out two jars, one large and one small, from the house.

Then pour some well water into a large jar.

In the small jar, half a jar of water was poured directly.

Subsequently, the small jar is placed in the large jar.

He took out some saltpeter and slowly added it to the well water in the large tank.

Saltpeter comes into contact with water and begins to dissolve.

Qianqian took another wooden stick and stirred it.

As the saltpeter slowly dissolved, a thin layer of ice appeared on the surface of the water in the small jar.

After a few more moments, the ice had completely condensed.

Qianqian hurriedly took out the jar, and then put it on the stove and heated it for a while.

Seeing that the ice cubes condensed on the walls of the jar had melted, Qianqian removed the ice cubes and poured them into a plate.

"Indeed! It's hard to make this ice!"

Qianqian glanced at Li Yuanji and said lightly.

At this moment, Li Yuanji's eyes had widened and he was completely stunned.

"Summer Ice!"

"It's a miracle!"

The eyes he looked at Qin Fan and Qianqian also began to become special.

To be able to show such a miracle, the other party must not be simple.

If this is the case, they may not be able to say what they can do about the emperor's illness.

If so, wouldn't he have no hope of succeeding to the throne?

"Such a miracle! It's impressive."

Li Chengqian, who was on the side, exclaimed.

Hearing this, Qin Fan shook his head:

"It's not a miracle, it's science!"

Saltpeter melts and absorbs heat, which in turn transfers from a place where the temperature is high to a place where the temperature is low.

As a result, the saltpeter melted in the large tank was refrigerated, causing the water in the small tank to condense into ice.

That's it!