Park Budong, the envoy of Silla, was completely stupid by King Liang.

This matter has been satisfactorily resolved.

The envoy of Silla respectfully withdrew after receiving the letter of state stamped by Li Chengqian written by Li Su.

However, although this matter has passed, the early dynasty has not ended.

Because the condensation of water into ice that His Royal Highness King Liang just showed just now and the method of using ice to make fire was really amazing, and they all wanted to know how King Liang did it.

The crown prince Li Chengqian couldn't help but ask: "Sixth brother, just now you condensed water into ice and used ice to make fire, how did you do it?" ”

Li Su smiled slightly and said, "Your Highness, this method is easy to say. However, the ministers were afraid that after the news leaked, it would reach the ears of the envoys of the Silla Kingdom, and it would cause the matter to repeat. Previously, the envoys of the Silla Kingdom were so rampant, and the courtiers suspected that someone had an affair with him. ”

Hearing Li Su's words, the faces of those officials of the family couldn't help but change color slightly.

And the eldest grandson Wuji, Fang Xuanling, Du Ruhui and other Wenchen showed thoughtful expressions on their faces.

Li Chengqian nodded, and then directly announced his retreat from the dynasty.

After retiring from the dynasty, all the descendants of those family officials left.

And the eldest grandson Wuji and the generals didn't leave.

They also wanted to stay and see how King Liang did this.

After everyone left, Li Sucai said: "Actually, it is very simple to condense water into ice, because the younger brother asked people to put saltpeter powder in the basin in advance. Saltpeter powder dissolves in water and can take away a lot of heat, which can make the water freeze. As for the method of using ice to make fire, it is actually very simple. ”

Speaking of this, Li Su directly took out a piece of ice in the basin, polished it into a convex lens, and handed it directly to Cheng Yanjin.

Next, the group came to the outside of the temple again and put a blank piece of paper on the ground.

Under Li Su's teaching, the condensed points of light formed by the convex lens fell on the white paper, and soon, the white paper burned.

At this time, everyone suddenly came to their senses.

It turned out that the immortal family's methods, which looked amazing, were worthless.

At this time, the eldest grandson Wuji and others remembered that in the past, Li Su had bought the largest saltpeter mines around Chang'an City.

It turned out that at that time, he was preparing for ice making.

In the end, Li Chengqian instructed: "There is also the secret of making ice and making fire, and no one is allowed to spread it." ”

……

After this incident, the cool summer shop suddenly became popular in Chang'an City.

Every day, countless people come to enjoy popsicles and ice cream in the cool summer.

And the hottest thing to sell is not the relatively cheap popsicles, but the more expensive ice cream.

After all, even relatively inexpensive popsicles are not something that ordinary people can afford to consume.

Ice cream is more expensive, but it's even tastier.

Therefore, most of the customers who come to buy are asking for ice cream.

And an ice cream, a cool summer shop, can earn more than 900 yuan.

And they can sell hundreds or thousands of copies a day, and the profit on this day will reach hundreds of yuan.

It will not take a few days to earn back the money for the purchase of the mine.

At the same time, the theater of the first courtyard of the world and the first theater of the world also began to provide popsicles and ice cream.

In addition, a large amount of ice is placed in these two premises every day.

Here, it is estimated that it is cooler than the palace and those families.

It's hot outside like a steamer, and if you walk around, you'll be sweating profusely.

As soon as you enter the first theater in the world, you will immediately feel the slightest coolness, and you will not feel the heat at all.

There are also popsicles and ice cream for sale inside, order one, taste the cold taste, delicious, it is definitely a great enjoyment of life.

The theater of the first theater in the world was originally extremely prosperous, but now, it is even more prosperous.

Because the weather is so hot, those rich people basically have nowhere else to go except to stay at home.

And now, they have one more choice.

The inside of the first courtyard in the world is even cooler than their home.

It's cool and you can see good-looking stage plays, which is definitely the best place to cool off, relax and entertain.

The first theater in the world, from the beginning of the performance every half a month, to the performance every ten days, has evolved to perform every day.

Even so, the demand for tickets every day is in short supply.

Now it's really almost to the point of selling hanging tickets.

Of course, in the theater of the first theater in the world, the content of the stage plays performed is becoming more and more abundant.

The performers are no longer limited to the original eleven girls.

Now the storytelling, cross talk, lotus falling, stage plays, etc., are rich and colorful, and the audience who watched it was addicted.

Even the cabaret performances began to shine.

And Ouyang Ruoshui has also become a big star in the theater, with a huge fan base in the entire Chang'an City.

……

It's hot, there's nothing going on, and everyone is starting to feel less like going out.

This has led to a lot of business in many shops being much colder.

Many green building businesses in Chang'an City have been affected.

The weather is too hot, and if you spend money to do it, your body is like you have just taken a shower, and you are prone to heat stroke.

It's not enjoyment, it's just sin.

However, only in the first courtyard of the world, instead of being cold, business has become more and more prosperous.

There's no way, there's a lot of ice in the first courtyard of the world, and it's very cool after entering.

Even if you fight with those sisters, you basically don't sweat.

A place like this that is refreshing and can escape the heat is naturally sought after by countless disciples.

It's the price there, and it's a lot more expensive because of the ice.

……

Li Suo asked Cheng to show the tea they bought, and finally bought it back.

This time, I actually bought back more than 3,000 catties of tea.

Of course, this is all fresh tea, and it was finally transported through the method taught to them by Li Su.

These teas can only be drunk after they have been fried.

Next, Li Su began to check the method of stir-frying tea.

Stir-fried tea is divided into three processes: raw pot, two green pots, and cooked pots.

First of all, it is necessary to build a three-pot connected roasted tea stove, the pot is inclined at an angle of 25 to 30 degrees, and the tool used is a broom for roasting tea, which is tied with bamboo.

After making these preparations, Li Su began to prepare the roasted tea.

Because roasted tea did not appear at this time, and other people did not know how to roast tea at all.

Well, well, in fact, Li Su doesn't understand.

However, he was in the system, searched for the video of roasting tea, and after watching it carefully, he basically mastered the whole process.

Now, he is the only one who has gone into battle himself.

Of course, as long as you master the method of roasting tea, the next work can be handed over to your subordinates.