It was precisely because of this idea that after searching for many ancient books, the young man finally used the method of using a kiln to burn charcoal.

In the previous few times, because the kiln was not ventilated enough, the charcoal outside burned out, but the inside didn't burn much. It was really unpleasant when it passed, and it was not even there.

Or because the timing of covering the vent is inaccurate, the waste residue that should have flew out along the vent fails to fly out and solidifies directly on the charcoal, making the charcoal impossible to burn for the second time.

After more than a dozen failures, the teenagers calculated that four vents were the most suitable and when to close the vents. Today is another tense experiment.

“Close the vent quickly!”

Seeing the waste dripping flying out along the wind gradually decreased, and the black smoke turned into thick and moderately green smoke, the beautiful boy quickly ordered.

"yes!"

Several young men of similar age quickly pushed the stone gate, and used mud to block the surrounding gate, firmly sealing the burning furnace.

After closing the kiln, there is no need for everyone to stay here anymore. It will take some time for the firewood to burn itself, and then it will have to cool itself. According to the previous experience, it should be the most suitable for about five days.

Although waiting is very painful, it is also very exciting when looking forward.

Early in the morning of the sixth day, the pretty boy stood in front of the kiln with a group of boys with hope.

Last night, the vent was opened again, and a hot breath rushed out of the kiln with the breeze in the early morning and morning.

It has continued until now, and there is still blue smoke curling up.

Now that the young master knew that he was going to burn charcoal, although his master had never burned charcoal himself, he knew the effectiveness of the kilns that burn porcelain. If he rashly opened the kilns without waiting for the heat to run away, the things inside would burst, or the person who went to open the kiln was burned directly by the hot gas.

It takes six hours to release this heat.

Even if it was still an hour away, the teenagers couldn't wait, and looked at the blue smoke, hoping to drift away quickly.

Time passed little by little, and finally it was tested that the temperature was no longer hot. The handsome boy quickly asked his friends to drag the kiln door open from both sides with ropes.

After waiting for another half an hour, they picked up the shovel and shoveled out the dark charcoal bit by bit.

Seeing that the one-foot-long firewood turned into about three inches of charcoal, holding it in his hands, although it was a little hot, the teenagers all smiled.

"Let's try it!" one of the teenagers suggested.

"good!"

The boys picked up the basket and ran into the village. They found an aunt who was about to cook, took off her firewood, and then put the charcoal that had just been burnt in.

"You monkeys! If I delay cooking, you can wait for my magic stick!" The fat aunt in her thirties stood at the kitchen door, yelling with her waist.

The teenagers were so scared that they trembled. Before they could even be afraid, they were attracted by the charcoal that began to burn in the stove.

The charcoal was easily ignited by the fire, and slowly the blue smoke floated up.

Charcoal does not cause open flames, it usually turns into a fiery red color when it burns, and then emits heat.

"Pu!...pu!..."

As the crisp sound passed, the water in the pot on the aunt's stove began to boil.

"Huh? Why is it so fast?"

The aunt was so surprised that she almost glared out of her eyes, "It's too fast! It took a quarter of an hour to burn, but now it's only one-third of the time!"

"Hahaha……"

The teenagers smiled with satisfaction, and the handsome young man in the lead was even more relieved.

"Aunt Chunhua, look at how the smoke is like this thing? Is there less firewood?" asked the handsome boy.

"I forgot if you don't say it... I'm just wondering, it's a little different from usual." The aunt replied with a sudden realization: "The room was already full of smoke at this time. There is very little smoke now. I can still see you guys clearly, and their eyes are not uncomfortable. It's great!"

"yeah!!"

A thin boy clenched his fists excitedly: "Brother Bao, we succeeded!"

"Yes, go and report to the three masters. Now we have made great contributions and at least we have to reward us with dozens of kilograms of meat!"

"Idiot, aren't the three masters the adoptive father of Brother Bao? The reward here and the rewards there are also taken back?"

"Hey, no matter what, we have made a significant contribution anyway. Let's see if those adults dare to look down on us!"

"Long live Brother Bao!"
Chapter completed!