Han Cheng looked a little disappointed when he looked at the unburned wooden sticks that were revealed after the soil was dug up.

This method really doesn't burn carbon.

The sticks that were pulled out were very similar to those that were burning and suddenly extinguished by water, they were all black carbon on the outside, and unburned wood on the inside.

This thing is far from the carbon that Han Cheng has seen in later generations, and it can't be called carbon at all.

Although before he opened it, he felt that this method was a bit mysterious, but after all, there was still some expectation, and at this time, the truth was revealed, and it was inevitable that he would be a little disappointed.

Wu who was standing on the sidelines watching was also full of disappointment.

He had been expecting last night that some changes would occur in the firewood that had been solemnly buried in the soil by the Divine Son, and that it would be better to be able to grow more firewood.

Now that he saw that the result was like this, he was also uncomfortable.

I felt that the road I thought of was much farther away from the tribe, and there were faint signs of being completely sealed by thorns......

Han Cheng was a little distressed, he only knew a little about charcoal burning, the first attempt failed, and he had no good way to think of for a while.

Look at the people around him who are looking at him, and let them continue to do the work they didn't finish yesterday.

Tietou and others went to harvest the thatch, and the lame and wood were cut off and burned in the fire, and then polished.

Han Cheng squatted on the edge of the fire pit that looked a little messy, and as if he didn't give up, he picked up a piece of black lacquered wood that was burned outside, and put it in front of his eyes to study it carefully, with a thoughtful look in his eyes.

In this situation, Han Cheng suddenly wanted to recite a poem, which was the famous "Charcoal Seller" written by Bai Juyi.

It is not that I feel the difficulty of burning charcoal, sympathize with the old man's difficulty, or indignant the disturbance of the people in the palace market, but I think of some experiences of charcoal sellers burning charcoal.

Sell charcoal, cut down and burn charcoal in the southern mountains. His face was full of dust and smoke, and his temples were pale and his fingers were black......

The first two sentences of this article wrote about the hardships of selling charcoal and burning charcoal, but Han Cheng saw some other things through this layer.

It's just that his method of burning charcoal is really unworkable.

Because judging from the experience of the charcoal seller, he is very likely to be a lonely man, old and weak, if he uses the method used by Han Cheng to burn charcoal, not to mention the rest, it is difficult to just cover the burning firewood with sand.

Because of the slow mulching, these branches are burned by fire, where will there be carbon on it?

Han Cheng didn't know what others had read from "The Coal Seller", but he did read it from here at this time, and his method was not good, although he couldn't say it very clearly.

Wu stayed with Han Cheng here for a while, and then got up and went back to the tribe, and after hesitating for a while, he still came to the edge of the rabbit circle, lying there and petting the rabbit every day.

It's just that compared with the past, when you pet the rabbit today, you have to look a little absent-minded.

Han Cheng squatted there and thought for a long time, and when he stood up, he had no intuition on either leg, and after staying in place for a while, he gradually came out of this sourness.

He called for Heiwa, and walked with him to the earthen kiln near the river, with the firewood.

As the weather got colder, Heiwa hadn't made pottery clay embryos for several days.

Heiwa and Han Cheng together, put the firewood they were holding on the edge of the earthen kiln, and they couldn't help but have some doubts in their hearts, the last batch of clay embryos were also fired a few days ago, and what did Shenzi do when he came to the earthen kiln with firewood at this time?

Isn't it going to use this earthen kiln to burn charcoal?

Heiwa is not a stupid person, and when she contacted what Shenzi had done before, she quickly guessed Han Cheng's intentions.

It's just that the confusion in my heart is even stronger.

The whole tribe counted him as having dealt with this earthen kiln, which was very well ventilated, and when he put in firewood and lit a fire, it would burn brightly.

Now that the Son of God has brought so much firewood and put it in the earthen kiln, won't it all be burned? Where else can there be the kind of charcoal left in the Son of God's house......

Han Cheng was also thinking about this matter in his heart, but he didn't have too many clues, so he could only experiment little by little, looking for experience from failures again and again.

With the help of Heiwa, firewood was placed in the kiln where the clay embryo was originally placed, and firewood was also placed under the kiln.

The top of the earthen kiln was blocked by two large clay plates, and after Heiwa took out the original version of the fire fold and blew the flames, she looked at Miko with an inquiring gaze.

Han Cheng naturally knew what Heiwa meant, and after a little hesitation, he nodded lightly.

After getting Han Cheng's confirmation again, Heiwa no longer hesitated, first lit the hay, and then lit the dry firewood, and it didn't take long for the matches at the stove under the earthen kiln to burn the fire.

It didn't take long for the firewood placed in the kiln to burn.

So much firewood burned together, the fire was very strong, and even though the clay kiln was covered with pottery plates, the hot flames still drilled out of the cracks around it, and they rose high.

Heiwa looked at all this, and suddenly remembered that yesterday the god son asked people to cover the burning firewood with sand, and couldn't help but be a little anxious.

After all, this earthen kiln has a great purpose, and he spent a lot of effort to build this earthen kiln, so wouldn't it be a pity if it was buried like this?

Then he looked back and forth, and found that there were only two people here, and he didn't carry a bone shovel yet, obviously he wouldn't bury the earthen kiln, which made him feel relieved when he loved the kiln.

But then I realized that something was wrong, and if I didn't cover it up with sand, wouldn't the firewood in this kiln be burned?

Han Cheng had already considered this before, the burning of flames required oxygen, and he still had the most basic common sense.

After watching the fire for a while, he asked Heiwa to go to the side first and move the broken large pottery shards and some stones that were discarded there to the edge of the earthen kiln.

After waiting for a while, he asked Heiwa to use these things to plug the fire under the earthen kiln a little bit.

As the fire vent shrank little by little, the air entering it slowly decreased, and the flame lost its previous arrogance and became much smaller.

It's just that the flame in the earthen kiln is still not completely extinguished, which is related to the gap in the fire under the earthen kiln.

Han Cheng is also entangled now, if he doesn't completely seal the fire mouth, he is worried that the firewood inside will be completely turned into ashes, so he will completely seal it, and he is afraid that these firewoods will be half-baked and uncomfortable like he pulled out of the ground today.

After struggling like this for a while, I finally decided to burn it like this first, and if it didn't work, I would completely seal the fire mouth with mud next time.

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