Su Yang was worried, he didn't eat for a whole day, and only drank most of the egg soup in a clay pot, well, what the tribe ate today is egg soup.

His appetite was not affected in the slightest, he should eat and sleep, and the next day he devoted himself to the kiln, fine-tuning it five or six times, and finally found the reason, which was because of the chimney.

After all, he designed this bunker furnace to be a shaft kiln, and the air was supposed to rise after burning, but because he set the chimney opening low at the rear, the flames were torn away as soon as they came out, as if a fish had met water and was desperately drilling into it.

To solve this problem, you can set up a fuse wall or something, and block the fire to it, but it is also a symptom rather than a cure, or it is not suitable for the current shape of the furnace.

The adjustment method is also simple, make a flue in the mezzanine layer of the kiln wall, and directly exhaust the smoke into the chimney at the back. To put it simply, on the right side of the grille, make an arc-shaped vent, and the smoke will be discharged from this opening as soon as it is burned, and it will not affect the flame to go up at all.

This ventilation flue goes around the chimney from the top or side of the stove to the chimney at the back, and instead of a separate chimney opening, this passage is between the enclosed outer wall stone and the inner wall mud layer, which maintains the temperature of the wall.

And you can bury a pit from the back chimney to the left, all the way to the ash pit under the grate, this pit is used to discharge the ash particles in the smoke, of course, this ash pit is dispensable, get it, the ash in the smoke discharged to the sky is relatively less, and it has no effect.

However, this design will reduce the ash particles scattered in the furnace, this is a pure natural glaze, before burning in the open air, the ashes fell on the surface of the clay pot, forming a black pottery, now it is estimated that it is gone, and it may be red pottery when burned.

He pondered that he could make some clay glaze, that is, mix the ashes of plants and trees into the water and brush a layer on the surface of the clay pot, or put the clay pot directly into the ash glaze water. Then there is the choice of soil with high solubility, soaked into muddy water, and used as mud glaze. Both methods are very simple, and it is not troublesome to add such a process.

It took another day to renovate, and finally there was no dispensable tunnel, mainly because there were only a few days left to open the ruins, and these two days must be opened to burn pottery, and in case of failure, there must be time to adjust.

At present, there are more than 200 pottery embryos that can be fired in the furnace, which is the accumulation of more than 20 days, and long before the great migration, pottery has been made here. In addition, there are hundreds of pottery that need to be dried, and with the method of making pottery on the turntable, at least fifty pottery can be produced every day, which is one thousand and a half a month, and it will not take half a year to popularize everyone in this vicinity to have pottery.

Of course, there are scraps and damages, and you can't always use small pottery, and besides, he is not a saint, how can he be sent out for no reason to popularize, the rules of the bazaar, barter, you and I are willing.

"Let's open a stove." How is this similar to alchemy, do you want to worship the kiln god?

Soon, a hundred clay pots were put into the bunker kiln, which appeared relatively loose, and if they were all full, three hundred could be stuffed into them. After checking that it was correct, the kiln door began to be sealed, and the stone was used to smear the soil, and the strength of the people was great, and there was no need to pay for the work, as long as the food was managed.

Before the fire, he sacrificed as usual, Su Yang lit the first fire, and on the right side of the grate was the ventilation hole, and the fire came up at once, and the more it burned, the more it burned, and the firewood was put directly into it.

But burning a fire is actually a technical job, just like the same firewood, a skilled worker can cook ten times, and a novice may run out of food in two or three times, although there is no shortage of wood now, but it cannot be nonsense.

So he didn't continue to burn the fire, gave up his position, and then went to check the surroundings of the kiln again, and used the kiln to burn pottery for the first time, don't miss it.

As for the time of firing the kiln, he really couldn't be sure, thinking about it, anyway, there was no shortage of wood and labor, so he set ten hours, almost until the end of the night, and then cool down overnight, and open the furnace tomorrow.

The fire in the furnace has not stopped, not only wood, but also a lot of hay, billowing smoke has been floating in the air, many people are guarding the stove, if it can be successful, then the pottery will be really simple, will usher in a leap.

Su Yang was not satisfied, he encouraged the pottery team to make more and bigger pottery, so that it can be used in different places to meet the needs of life and improve the quality of life.

And personally made some models, so that everyone followed the divergent thinking, and even he had a whim, according to the principle of the kiln to make a stove, in the future to cook food separately, concentrated cooking, not only from the source to control the food reserves, but also to save too much time, so that the people are after eating food, but also have time to rest.

When night came, everyone paid attention to the pottery kiln, but they couldn't see the situation inside, only anxiously waiting.

Su Yang didn't sleep well this night, and as soon as it was dawn the next day, he ran to the kiln, and found that there were dozens of people staying here, and they were also here at night, this spirit is worth learning.

He looked at the grate, which was already cooling, "Come here, turn on the furnace." ”

"Open the furnace!" "Go and call the elders."

In an instant, it became lively again, almost all who could come came, more than 400 people watched strongly, and this problem of loving to watch the excitement has been there since the primitive period.

Soon, a hole was pounded out of the kiln door so that it could be determined if it had cooled down and prevented accidental burns.

Su Yang stepped forward to take a look, and he could already vaguely see the clay pot inside, at least it was not broken, this was a good start.

"Go ahead and clean the kiln door."

Seven or eight strong men stepped forward, and it took a while to get out the stones that had been piled up on the kiln door, so that they could be opened in.

Of course, Su Yang can't be the first to go in, in case of danger, what if the kiln collapses, all the stones that fall are stones, and there is no return. So let the rest of the people go in first, of course, the number of people is strictly controlled, the space inside is so large, don't have a problem with the kiln itself, but it makes people crowded.

"It's done, Sue, the clay pot is burned." Someone came out with a clay pot.

This is a pottery that looks black on the outside, because it was glazed with gray before firing, and he tapped it with his fingers, and the sound sounded much better than the previous pottery, and it was smoother and more delicate to the touch.

This pottery is definitely a fine product, if compared with other tribes that also burn pottery, there is simply no comparison, because the gap is too big, rough and hardcover.

"I'll go in and have a look, too."

He had only now walked into the kiln, and he had to go in to see if there were any minor problems that had been overlooked, first of all, there was ash on the ground, and it was unavoidable, because there was no opening in the roof to ventilate. The pottery near the top of the grate was burned a little hard, and the appearance looked a little superficial, but it did not affect it.

It should not be calcined for a long time with an open flame, and then pay more attention to the position of the pottery, and the rest of the place has not found anything wrong for the time being, of course, the kiln that originally looked beautiful is now like a fire scene, and can only pursue practicality.

One by one, the clay pots were carefully taken out and placed in the open space outside, welcoming bursts of cheers from the clansmen, and at the same time, Su Yang's prestige was strengthened again, because the pottery was originally promoted by him, and without him, there would be no pottery available in the tribe! (To be continued.) )