There are two types of activated carbon production, one is to activate charcoal by chemical methods, and the other is to activate at high temperature.

Lin Banxia didn't know where to find the chemicals he needed, so he could only try this method.

Charcoal needs to be stirred from time to time so that it is heated evenly up and down.

The temperature rose sharply, and after a while, the bottom of the iron pot was already burned red, and then the charcoal particles in the iron pot were gradually burned red.

The wooden shovel churning charcoal grains smoked, and the guard had to draw his knife and use it as a spatula.

The small courtyard was quiet, and the smoke kept rising, which made Zhao Chengfu, who was in the distance, worry for a while.

"It's called activation, and it changes some of the properties of the charcoal, and in about half an hour, you can lower the temperature a little bit." Lin Banxia brought a large bundle of firewood and filled it into the stove.

Xia Changyan asked, "Is it right to keep this temperature for half an hour?" ”

Lin Banxia nodded: "Yes." ”

"Let him watch, you go out for a walk with me." Xia Changyan ordered.

Lin Banxia happily accepted this order, and she also felt that the high temperature in the small courtyard was a little unbearable.

The leaves at the entrance of the village were yellow, and a yellow leaf fell in the breeze, Lin Banxia reached out to catch it, and tore out a heart shape in the middle of the yellow leaf, facing the distant mountains.

"Your Highness, take a look?" Lin Banxia handed the leaves to Xia Changyan.

Xia Changyan took it, and in the heart shape of the yellow leaves, Lin Banxia's smile was revealed.

"It's not to look at me, it's to look at the distant mountains." Lin Banxia in the yellow leaves smiled and dodged.

"Are you going hunting?" Xia Changyan put down the yellow leaves.

"I can't go. I soaked beans at home, and I had to grind beans to make tofu and sell them later. Lin Banxia said honestly.

Xia Changyan frowned: "Isn't the silver given to you enough to spend?" ”

He only said the reward, and he didn't know exactly how much.

"I also want to eat it at home, and it just so happened that His Royal Highness rewarded the cow, so I made more tofu and let everyone in the village taste it.

In fact, not only tofu, I also want people in our village to be able to eat rice, white noodles, and meat in the future, and even live in brick houses.

Your Highness, do you think it's possible? ”

Xia Changyan was surprised, even he didn't dare to imagine that everyone could live in a brick house and eat meat.

But Lin Banxia's expression was very serious, and there was a glint in her eyes, as if what she said could be realized, so that Xia Changyan couldn't bear to interrupt her words.

"Does Your Highness think I'm delusional?" Lin Banxia chuckled, "But it's man-made." If you have a dream and work hard, your dream will become a reality step by step. ”

Lin Banxia looked at the distant mountains: "Before, I had never seen silver. ”

Truth be told, as a modern person, there is almost no chance to see such a thing as silver.

"But now, not only do I have silver, but I can also eat white flour rice, meat, and tofu." Lin Banxia turned his head to look at Xia Changyan, "I was also a guest in the palace and met His Royal Highness." ”

Lin Banxia pointed to an open space at the head of the village and said, "I plan to open a workshop in this area and invite people from the village to work." If all goes well, a brick kiln can be built in the spring. ”

Lin Banxia smiled, his eyes full of longing.

The heart-shaped yellow leaves were quietly received by Xia Changyan into the cuffs.

Not long after Xia Changyan left, Wang and Father Lin hurriedly returned with their two children in an ox cart.

Wang's apprehension.

Although Lin Banxia's eyes are clear and he does not have the charm of spring, a girl's family has been alone with a man for most of the day, and her reputation has been damaged.

If in the future, what can the prince do if he doesn't send someone to propose marriage?

There are no secrets in the village.

The Lin family came to the nobles, and the nobles' entourage helped Lin Er to harvest most of the land.

The nobleman also walked with the girl of the Lin family.

The girl of the Lin family will soon marry in the county seat, and the rumors of marrying a noble man have also disappeared.

In the Lin family, the whole family dragged back from the field with exhaustion, and the Li family stumbled and made the family's dinner.

Lin Da reprimanded irritably: "Be quiet! ”

Li threw the kitchen knife on the board, carried the basket with half a basket of beans, and put it in front of Lin Da: "Go, change tofu." ”

"What?" Lin Da's eyes were round, "I'm going to change tofu?" ”

"Why don't you go when everyone else is gone?" Li said annoyedly.

"I'm not going to disgrace that person!" Lin Dadao.

"Who are you throwing away? Your brother's family has climbed to the top of the nobles, which family in the whole village can't go over and say a word? What's wrong with your past? You're his big brother. For the first time, Li spoke loudly in front of his in-laws.

Lin Da was speechless.

After a while, he said, "Why don't you go?" ”

"Who am I going to cook?" Li stuffed the basket into Lin Da's hand and pushed him out of the courtyard door, "Go quickly, there will be no tofu when it's late." ”

Lin Da reluctantly went out with half a basket of beans.

Lin Da didn't like his younger brother.

From the birth of his younger brother, he did not like it.

When he had a younger brother, he had to give him half of what he ate, and his clothes were worn away by his younger brother before he was small.

The mother also held her brother more than she held him.

Therefore, he has been trying his best to make his father and mother dislike his younger brother.

His clothes were torn, and he would say that his brother had caught them.

He robbed his younger brother of food behind his father's back, and secretly pinched his younger brother behind his father's back.

The younger brother cried all day long, and finally annoyed his father.

Later, when he learned that his mother was injured because she gave birth to her younger brother and could no longer give birth, he was very happy.

So he always brought it up inadvertently, and put a thorn in his father's heart.

He is two years older and coaxes his father and mother to be happy everywhere.

If there is a little delicious, he will definitely coax his father and mother to give it to him sweetly.

And the younger brother who is always crying, the younger brother who can't even understand the words, who will like it.

He got his father's love as he wished, and his younger brother became a person that the whole family hated, no matter how much he did for the family, everyone felt that he should be.

But now, this second brother has climbed into a nobleman, just because he gave birth to a girl.

Lin Da had a gloomy face, and when he approached the small courtyard of Lin Er's family, he changed to a sincere smile.

"Second brother, younger brother and sister, all at home." There were still people waiting in the courtyard to change tofu, and Lin Da was standing behind.

"Big brother is here." Wang replied with a greeting.

Lin Erzheng was measuring the tofu, glanced up, and called "big brother".

The person in front looked back and smiled: "Lin Da, you are also here to exchange for tofu?" ”

Wang Da smiled innocently: "I'll come to see the second brother." ”

"It's not that your second brother's family has met a nobleman." The person in front laughed unceremoniously, carrying the tofu and not leaving, waiting to see Lin Da's joke.

Lin Da was annoyed, but he still smiled: "Second brother, you have time to see your father." My father and mother are old, and I can't wipe my face, and my mother secretly wiped her tears last night.

Second brother, there are no parents in the world who are not. Dad got off the ground and stretched his waist today, and my mother was not in good health......"

Lin Banxia could hear it clearly in the house.

This uncle is very interesting.