Not far from the hillside.

Yu Zhang looked at the handsome figure, his eyes were full of light, and the corners of his mouth muttered to himself - there is no hunger, no war, no hatred, from now on he will be rich and healthy, and his descendants will continue, isn't that the world of great rule that the sage said? Isn't that the target of my father's pursuit?

"Yes, I didn't expect to underestimate him, Sister Huang, I must marry him, only such a person is a big hero, and it is worth my Jinyang to be crazy about." The little girl Jin Yang also has light in her eyes.

"You're crazy." Yu Zhang said angrily.

"Aren't you?"

Yu Zhang was stunned, did not refute, and showed a sad face.

Jin Yang didn't make fun of it anymore, but said seriously: "Sister Huang, are you worried about the Tang family?" Ju Guogong is a generation of masters, but his son Tang Shanzhi is a waste, and his father is really, he actually wants to marry the imperial sister to this waste, but fortunately, he has just made up his mind, and he has not decided, so I will persuade him when he goes back. ”

"How to persuade, the marriage is up to the parents."

"Don't care, I have a way, just remember that we agreed, although we are princesses, in fact, we are just caged birds, after all, we want to marry, but it is better to marry someone than to marry that waste, the brother of the Qin family is both civil and military, benevolent and righteous, 10,000 times better than him."

"What are you crazy about?" Yu Zhang was a little speechless, but he was inexplicably looking forward to it in his heart, and he couldn't help but look at the back of Qin Huaidao who was leaving, and his heartbeat began to accelerate.

……

Qin Huaidao didn't know what the sisters were thinking, so he took the guards of the house to a hillside, and with an order, more than 20 people picked up their tools and went up to excavate, first clearing the weeds, and then digging a pit, and the excavated earthwork was just used to level the ground, forming a flat land to turn around and stack coal.

It took three days, a large kiln was dug out, the mouth of the kiln was reinforced with stones to avoid collapse, it was no problem to pile a thousand bricks inside, and the chimney was also reinforced, just in case, Qin Huaidao checked it, and after confirming that there was no problem, he gave an order, and more people concocted it according to the law and excavated the brick kiln.

Five days later, the coal was transported, Qin Huaidao asked the palace guards for help, found a place to dig a long pit, women and children helped, and moved large and small stones from the river, all of which were used to reinforce, and he was very busy.

On the seventh day, more coal was transported over, and the kiln was still digging, Qin Huaidao asked the guards to help pour some coal into the soil pit on the ground, ignite and burn it, and when all of it was burned, seal the soil and cover it up, isolate the air and simmer it.

Early the next morning, Qin Huaidao hurried to check, he was worried, seeing that there was no smoke overflowing, and the temperature of the soil on the surface was also reduced, it was estimated that it was almost burned, so let people dig it up and take a look, the pieces were of different sizes, silver-white or gray-black, with metallic luster, pick up a piece and take a look, it was a little hard, and there were holes, it was coke, and he was immediately overjoyed.

Although it seems to be of average quality, it is coke after all, and it burns at a higher temperature than coal, and it is much better than charcoal to smelt iron and stone to make weapons.

The brick kiln can be fired with coal, and the effect will definitely only be better if the coke is smelted by yourself, even if the quality is poor, Qin Huaidao looked at the coke in his hand, and his heart fell to the ground.

"Young master, what's the matter?" Jia Youcai came up with the guards and asked nervously.

"Just burn like this, the brick kiln will be burned as much as you need, and the excess black soil will be of great use in the future, and the burned ones will be stacked in another place, and a shed will be built to shelter from the rain, remember, this craft must be mastered in the house, only a few of you know, and no one else can touch it."

Although Jia Youcai didn't know why Qin Huaidao attached so much importance to this thing, and he didn't know what it was used for, he felt very magical and unusual, and said solemnly: "The old man saved, the skills have been precious since ancient times, the young master passed it on to everyone, everyone should cherish it more, this matter is important, be careful, otherwise don't blame the old man for being polite." ”

"Please rest assured, young master, we will save it." Don't dare to be careless, hurry up and remember.

These days, the bricks have been made a lot, and it has been dried in the sun for several days, just waiting for coke, now that the coke is made, Qin Huaidao's confidence has increased greatly, and with an order, the bricks were sent into the kiln, and Niu San'er and Xue Rengui, who have experience in burning brick kilns, have come to help, and now they are in command.

The bricks are stacked layer by layer, leaving some gaps in the middle, and after a thousand bricks are all stacked, the dry firewood is ignited, and the coke is piled up on it, everyone looks inside from the small square hole at the mouth of the kiln, full of doubts, the brick kiln is not a stranger to this kind of thing, but in everyone's opinion, those small stones inside can work? Shouldn't it be grilled with high-quality charcoal?

When the coke was ignited, the pieces were red, releasing a terrible high temperature, and it was not burned out as quickly as charcoal, and suddenly shouted amazingly, inexplicably, Qin Huaidao was more mysterious in everyone's minds, it was obviously a poisonous black soil, and it was disliked by others, so useful?

Whether this can burn bricks or not, Qin Huaidao actually has no bottom in his heart, but he didn't show it, so as not to cause everyone's worries, drive people away, and leave Jia Youcai alone and advised: "Burning fire is a technical job, and people who must be trusted must be responsible. ”

"Please rest assured, the old man must keep an eye on it." When Jia Youcai heard that he could make money, he immediately became nervous.

The kiln needs to control the temperature, but there is no thermometer, no one can understand just talking, Qin Huaidao found a discarded hoe and threw it next to the fire, and advised: "Uncle Jia, you must remember that the hoe is placed in this position, and it can be kept in a state of fire, if it is red and soft, there are signs of melting, the coke must be reduced, the temperature must be lowered, and once the hoe is darkened, coke must be added to raise the temperature." ”

The internal temperature of the brick kiln is generally controlled between 600 and 900 degrees, just the hoe is burned red, more than 1,000 degrees of iron will be softened, less than 600 degrees of iron will be darkened, although the temperature is not accurate enough with iron, but at least there will not be much problem, the key is easy to understand, operation.

In the era when there was no thermometer, it would be much better to have a reference.

Jia Youcai realized that this detail was very important, and quickly wrote it down, and said solemnly: "This matter is handed over to a few old brothers in the house to keep an eye on personally, there is no need for too many people to grasp it, the young master can rest assured that it is guaranteed to be foolproof, but it is inexperienced in burning with black stones, so it will take a few days to burn?" ”

Qin Huaidao is also the first time to burn, not sure, I only remember when I was a child, I saw that the village burned for about ten days, some burned for two or three days, thousands of bricks in the kiln, two more days may be better, so he advised: "Burn for twelve days, you can't stop in the middle, you can arrange people to take turns to guard, when the time comes, seal the kiln for three days, and then open it after cooling, and then continue to burn a kiln, find an open space to stack it after burning, and build a wooden shed to shield from the wind and rain." ”

Jia Youcai nodded solemnly and remembered every sentence.

Qin Huaidao thought for a while and advised: "Uncle Jia, I will leave early tomorrow morning, and this place will be handed over to Uncle Jia, Brother Xue is talented and trustworthy, you can discuss with him if you have something, and if you encounter trouble, you can go to Lu Guogong and Wei Guogong." ”

"The old man wrote it down."

If he could, Qin Huaidao wanted to stay and wait for the kiln to open before leaving, but Li Er couldn't give himself so long, not to mention that people can't be said and untrustworthy, what they promised must be done, and after explaining some things to Jia Youcai, Qin Huaidao found Xue Rengui, Mingyue and Huang Lao respectively, and explained carefully.

After that, Qin Huaidao walked towards the mountain behind the ancestral hall.