For Li Shimin, this is an unprecedented sensory experience.

In the scorching summer, when the heat is so hot that the throat and eyes are on fire, a cold ice cream with a strong milk and the fragrance of persimmon seeds will be cold directly from the tip of the tongue to your heart.

The sweetness is so rich that it can't be dissolved, and it makes people want to squint happily.

Compared with this, what kind of chilled sour plum soup, chilled grapes, all stand aside.

Heartfelt cool!

"How's it going, is it delicious?"

Seeing Li Shimin eating vigorously, Cheng Yanjin couldn't help but dance with his eyebrows, brewing an ice cream with his own hands, and buying an ice cream to eat are completely different psychological experiences.

"It's delicious—"

Li Shimin subconsciously replied, but his eyes swept to Cheng Jin's triumphant old face, and the movements in his mouth couldn't help but stop.

"Is this saltpeter the effect?"

The great shift of the universe - it is impossible to admit defeat, and it is never possible to admit defeat, especially when facing Cheng Lao Pifu.

Li Shimin took a sip, chewed the last bite of ice cream, and then turned around very calmly, twisting the saltpeter that Cheng Yanjin had bought and asked.

"Your Majesty is really a good eye, in a word, it is the effect of this saltpeter!"

A little ruthless just now, Liu Zi'an tried to save his image in the eyes of His Majesty Li Er. As a result, Li Er didn't pay attention to him at all, and did it himself in the order of Cheng Biting Jin.

Eating the ice cream he made, Li Shimin turned around a little complacently and glanced at Liu Zi'an.

"This is what you found? It's a little clever, but if it is promoted, it can save a lot of expenses for the imperial court and bring some convenience to the people. Come and tell me the trick here, and I'll be rewarded for it. ”

"These saltpeters, when dissolved in water, absorb a lot of heat, which causes the water temperature to drop and the water in the copper basin to form ice cubes."

The method of saltpeter ice making is too simple, it doesn't make much sense to say it, and besides, we don't dare not say it......

Li Shimin listened and nodded slightly, looking at Liu Zi'an's eyes with a little appreciation.

Knowing what it is and knowing why it is are two different things. Liu Zi'an can explain things so clearly and clearly in a few words, which shows that this young man is still a person who is willing to bend down and do things, although some scholars are stupid.

Liu Zi'an didn't know that his anger at His Majesty Li Er had been labeled as stupid by Li Er, and when he saw Li Er looking at him appreciatively, he was still a little excited.

The Emperor of the Ages expressed his appreciation for me and threw over a small look of appreciation!

The mood is a little excited.

He suddenly wanted to post a circle of friends......

"So, you old thing lives here with them, and you call it farming, but in fact, you want the coolness and ice cream here? That's all you have to offer, I see you at a glance......"

Li Shimin glanced at Cheng Yanjin, who was still shaking his head and tail, and couldn't help but stab him again.

Cheng Yanjin: "Hehe-"

Then, with your hands behind your back, at a forty-five degree angle, look up at the sky.

Li Shimin was a little confused in an instant, why did this old thing want to beat him up like this?

"Cheng Chubi, I'll give you a chance-"

Li Shimin didn't pay attention to Cheng Yanjin, who had already entered the state of "master", turned around, and looked at Cheng Chubi threateningly.

Cheng Chubi is also a little confused, why is it me again?

What do you two have to do with me?

He glanced at his father, and then at Li Shimin, who had an unkind face, and suddenly covered his stomach.

"Ouch - my stomach hurts, I'm going to -"

After this guy finished speaking, he pulled his legs and ran away.

Children make choices, I'm an adult, I don't want either!

"Ouch—me too—"

Li Siwen and Qin Huaiyu reacted instantly, Cheng Chubi ran away, and it was his turn to do the rest.

Do you still need to choose between being beaten by His Majesty Li Er and being beaten by Cheng Lao Goblin?

Of course not!

Liu Zi'an also wanted to run, but he was not as fast as Li Siwen and the three of them.

"There is still a lack of a clever little chamberlain in my palace—"

Li Shimin said as he slanted his eyes at Liu Zi'an.

Liu Zi'an only felt a chill in his crotch, and the foot he had just raised was instantly retracted.

There is no choice for this horse!

"I'm also—I said, actually, the reason why Su Guogong stayed here was because he had discovered a new type of crop......"

When Li Shimin heard this, his eyes lit up instantly.

"What crops? What is the yield? ”

During this time, he was about to go crazy with the food problem. After years of natural disasters, Datang's food has been in urgent need of people to the point of starvation. If a new type of crop can be found at this time, although it will not solve the food problem immediately, it will at least reassure people's hearts and ease the pressure of the next season.

"This new crop, the students call him the potato, and the yield is ......"

As he spoke, he secretly glanced at Cheng Yanjin and hesitated.

"As for the yield, the students are trying to plant, and they don't dare to assert it yet, and it is said that it is still quite impressive-"

Can't say, can't say.

According to his experience, traitors who betray their teammates don't end well, especially when the betrayed teammates are all bigwigs of the level of the prime minister and the national prince, they are generally cool.

Although I don't know how much I can yield per mu, it is already a surprise to be able to find new crops. Li Shimin was already overjoyed, no wonder today's old man Cheng made a great contribution to his daring.

Forget it, for the sake of this guy's hard work, I don't care about him in general.

"Where's the new crop? Could it be the stuff out there? ”

"Otherwise, do you think the old man is stupid? Came all the way here to live ......"

Cheng Yanjin glanced at Li Shimin dissatisfiedly, and said in a weird way. This guy is getting more and more cunning, and now he wants to pretend to be a wave in front of him, and the difficulty has increased a lot.

Who knew that Li Shimin didn't pay attention to him at all, opened the curtain and went out.

"Zhijie, how many of you are here?"

Li Shimin squatted down, carefully observing the leaves of the potatoes that had just unfolded, and couldn't help but show a happy smile on his face, and even the title became much more cordial.

It has been confirmed that it is indeed a new species that has never appeared in Datang!

"Actually, this is all the credit of Zi'an and Chubi, the old man just came to help watch, so as not to make any mistakes-"

Do you lack that bit of credit?

Of course it is missing......

But his son's meritorious service is a big deal!

Cheng Yanjin said, pushing Liu Zi'an in front of Li Shimin.

"Of course, the main credit is natural, and to punish a few of them is to do a little favor—"

"Yes, yes, yes, we just follow Brother Zi'an to do a little favor......"

Li Shimin glanced at Cheng Chubi and the three of them, he was in a good mood at this time, and he didn't bother to care about what they had just done.

"Yes, yes, very good, it's rare that you care about farming at a young age, and you work in the fields yourself, of course, the three of you are also doing well, and you finally did something serious......

PS: Thank you for your understanding and understanding, in the two days when I was weak in the update, I still gave strong support and encouragement, so that my book successfully passed the test level, and the 23rd is about to usher in the recommendation of the editor. Thanks again! There will be a change later, but it is estimated that it will be after half past twelve.

Finally, who is the one who named my daughter Li Yuanba, you stop for me, don't leave after class, we'll see you in the grove!