The Prodigal Son of Zhenguan

"It's just right. Now that this topic has passed and there is still time, Dr. Lu will take a rest here. I will take them to cook something." Li Fu said.

They all understood the meaning of "a gentleman should stay away from the kitchen", so Lu Deming did not stop Li Fu from taking them to the kitchen.

"Uncle Wang, what are we going to do?" Li Lizhi looked up at Li Fu and asked.

"The weather is hot, I will take you to make fruit smoothies." Li Fu said, "After we finish, it will be noon, just in time for you to eat some to cool off."

"Fruit smoothies? What is that?" Li Chengqian was puzzled.

Uncle Wang has new delicious food at home?

"There is ice in the palace, but those ices are not edible directly, and they were collected last winter and stored in the ice cellar. Today, Uncle Wang will take you to make ice by hand, and the ice you make can be eaten directly." Li Fu smiled.

"Eat directly? Make ice?" Li Tai was puzzled.

Isn't ice frozen when it's cold? How to make it directly?

"Are all the things ready?" Li Fu asked the servant in the kitchen yard.

"It's ready." The servant replied.

Li Fu looked back at Lu Deming who was sitting in the shed. He was still sitting there, immersed in his own thoughts.

He should still be thinking about the topic just now.

After all, he is a great scholar who has studied the way of the sage for almost a lifetime. The words said today are also a shock to him and can trigger his thinking.

Then let him think quietly for a while.

If you can really figure it out, it will be a good thing for the court, the people, and the Tang Dynasty if there are more sensible great scholars in the Tang Dynasty instead of corrupt scholars.

It will save you from being provoked by foreign races in the future, and you still want to influence them with the way of the sage, and you also want to marry with foreign races. It's okay to send a lot of gold, silver and jewelry, but you also send medical books, craftsmen, farmers, and food.

Send your grandmother's legs!

They learned it and made sharper and stronger weapons to fight the Tang Dynasty.

Everything was moved to the wooden table in the yard, and Li Fu and his three children gathered around the wooden table.

"This is the powder made from saltpeter." Li Fu said, "Here is a basin of clear water. Look, if you put an appropriate amount of saltpeter into the water..."

Li Fu said as he demonstrated.

The saltpeter needed for saltpeter ice making is not just ordinary saltpeter. Ordinary saltpeter contains too many impurities, which will reduce the reaction efficiency and product quality.

So you should try to choose high-quality saltpeter, that is, saltpeter with higher purity.

The second is to grind the saltpeter into powder, so that after mixing, a more complete reaction can occur.

Looking at the basin of water in front of them, which slowly began to turn into ice, the three children's eyes widened.

Really... frozen.

"Uncle Wang, how did you do this?" Li Tai asked with his eyes wide open.

"The secret lies in the saltpeter. When saltpeter meets water, it absorbs heat continuously, and the water temperature is continuously lowered, and it will freeze.

Of course, the ice cubes made by this method are not edible.

Moreover, saltpeter ice making must be done in an open-air environment."

"If you want to make edible ice cubes, you must use clean water and separate the saltpeter from other water in a container."

After Li Fu finished speaking, he took out the tools again and demonstrated to the children.

"The water inside is all boiled water. After cooling, it can be drunk directly." Li Fu said to the children: "Put this wooden basin filled with clean water in the middle of this large wooden basin, and add saltpeter around it."

Although the ice formation process was a bit slow, it was still successful.

"Really, it works." Li Tai was stunned.

"Of course, didn't we succeed once just now?" Li Fu said with a smile: "Let's take out the wooden basin inside."

After the wooden basin was brought out, Li Fu asked the servants to prepare ice-chopping tools, clean bowls and spoons.

In addition, the servants in the kitchen also brought out the fruits that had been prepared in advance, all of which had been washed.

"Next, we need to take clean ice from the basin, the finer the better." Li Fu said: "Here are the tools for chopping ice, be careful when you use them, don't hurt yourself."

The three children took the tools, surrounded the wooden basin, and began to chop the ice carefully, and then put it into the bowl.

Afterwards, Li Fu asked them to choose the fruits themselves, cut them into small pieces, and pile them on the smoothie.

By the way, he taught them to crush peaches, make peach juice, and pour it into a cup filled with ice cubes.

"Wow, it worked!"

When the children saw the finished product, they all shouted in the kitchenCheers.

Their hands were all stained with peach juice, sticky.

"Wash your hands first." Li Fu said, "After washing your hands, take a cloth and wipe the bowls, spoons, and cups you have touched."

The three children followed suit.

"You should give this one to Dr. Lu first." Li Fu said, "This is made by you. Since you are in the manor, Dr. Lu is your teacher. You should respect your teacher. Go."

"Yes." Li Chengqian responded, and after quickly packing up, he personally took a portion of iced fruit and peach juice to the pergola over there to give to Lu Deming who was still sitting on a stool in the pergola thinking.

"Dr. Lu." Li Chengqian came to Lu Deming and put the things on another stool in front of him: "This is made by Chengqian, Qingque and Lizhi. Uncle Wang said that this thing is cool and relieves the heat. Please taste it, Dr. Lu."

Dr. Lu looked up at the Crown Prince standing in front of him. He actually brought him a summer delicacy.

This...

Lu Deming stood up quickly and bowed.

"I thank you, Your Highness the Crown Prince."

"Teacher, there is no need to do this. Please sit down." Li Chengqian politely asked Lu Deming to sit down: "In fact, this is not the first time that Uncle Wang has taken me and my brothers and sisters to cook. When we were in Chang'an before, he also took us to cook. Later, when we returned to the palace, he brought it to Grandpa and Grandpa. Uncle Wang said that this is called filial piety. Today in the manor, you are the teacher and I am the student. Students cook for teachers. This is the way to respect teachers."

"In fact, I know that although Uncle Wang is playing with us, he is also teaching us with his words and deeds." Li Chengqian said seriously: "Therefore, during this time in the manor, please rest assured that me and my brothers and sisters will not indulge ourselves too much because of this."

Li Chengqian understood it in his heart, but he also enjoyed spending time with Uncle Wang like this. He liked the way Li Fu taught him. At least, it was interesting and easy.