As it darkened, Yun Xin and the Liu sisters carried the clay pot back to the camp.

“Wow, so much wood.” Liu Yimeng was surprised.

“Is this the furnace for ironmaking?” So high. Yun Xin was also surprised and walked around the blast furnace twice.

“It’s been hard.” Gang Chufeng put down the hay he had cut back, and after he had cut the wood, he went to collect the hay.

“It’s not hard, it’s nothing compared to the wood you cut today.” Liu Yimeng waved her hand.

“How is the iron sand collected?” Chu Feng asked with a few chuckles.

“Oh, a clay pot full of them.” Yun Xin smiled and lifted the sackcloth covered by the clay pot, and the iron sand inside was already full of it.

“Enough is enough.” Chu Feng nodded with satisfaction.

Liu Yiqiu squatted down, lightly touched the bamboo tube at the bottom of the blast furnace and asked, “Chu Feng, what do these bamboo tubes do?” ”

“Used to deliver air to the blast furnace.” Chu Feng explained casually.

“Deliver air?” Liu Yiqiu wondered.

“Well, ironmaking requires a very high temperature, 1500 degrees Celsius, and the maximum temperature that can be achieved by burning wood is 700 degrees Celsius.” Chu Feng explained with a long sigh.

“Can such a high temperature be achieved?” Liu Yimeng asked in amazement.

“Of course, it will be very tired, and you need to use the blower to continuously transport air into it, so that the fire burns more fiercely, so that the iron sand can melt.” Chu Feng reached out and patted the wall of the blast furnace, it was almost dry, and tomorrow he could start making fire to make iron.

If it is in the city, it is not so troublesome to use an industrial blast furnace, but now it is in the wilderness, and only such a primitive method can be used.

“With a blower? But we don’t have a blower. Yun Xin smiled bitterly.

“The blower is very simple, it can be done tonight, and it will take your help.” The corners of Chu Feng’s mouth rose and he raised his hand on the girl’s fragrant shoulder.

“Okay.” Yun Xin smiled like a flower.

She stuffed the clay pot filled with iron sand into Chu Feng’s hand and smiled, “Then I’ll go prepare dinner first.” ”

Chu Feng poured out the iron sand in the clay pot and spread it evenly on the prepared dried banana leaves, and the wet iron sand had to be dried.

“Chu Feng, will you start smelting iron tonight?” Liu Yimeng asked expectantly.

“Starting tomorrow, the blast furnace has not yet dried.” Chu Feng inspected the semi-dry blast furnace and whispered.

“Okay, then I’ll go help make dinner.” Liu Yimeng turned back to the wooden house, she was already hungry.

“To use a blower to transport air, does that mean moving all the time?” Liu Yiqiu sipped his mouth and asked softly.

“Guess right, you have to keep moving, you can’t stop for a moment, otherwise the temperature will drop back.” Chu Feng reached out and snapped his fingers and said calmly.

“Keep moving? How long does it last? Liu Yiqiu had an ominous premonition, but still asked the doubts in her heart.

“Not long, just a few hours.” Chu Feng said lightly.

“How many hours? Three hours? Four hours? Liu Yiqiu’s voice was a few degrees higher, pulling the blower continuously for several hours, can this really persist?

“Hmm… It should be said that it was a whole day. Chu Feng pursed his lips and corrected.

“…”The corners of Liu Yiqiu’s mouth twitched, it turned out that the whole day could only be counted for a few hours in Chu Feng’s eyes…

She couldn’t help but laugh bitterly and said, “I guess my hand will break.” ”

“There’s no way, that’s all for now.” Chu Feng was also helpless.

“I hope it lasts.” Liu Yiqiu looked at her thin arm.

It was completely dark, and after dinner, Chu Feng and several people sat together.

On the tabletop, there are four bamboo tubes and four pieces of animal skins.

“Chu Feng, the blower you said is made of animal skins?” Yun Xin asked hesitantly.

“That’s right.” Chu Feng nodded seriously.

“Can animal skins make blowers?” Liu Yiqiu was interested.

“What to do?” Liu Yimeng frowned with suspicion.

“It’s very simple, first sew into the shape of a large pocket, then fix the bamboo pipe at one end, and then fix the two sides of the opening to the stick.” Chu Feng explained the production of the blower in detail.

“I’ll try.” Yun Xin said softly, took out the wooden needles and twine, and prepared to try it first according to the method that Chu Feng said.

The girl first folded the animal skin in half, then sewed one of the sides with twine, and the other end sewed the bamboo tube into it, and then circled the twine several times to prevent the bamboo tube from falling off.

“Is that so?” Yun Xin cut the twine and handed the semi-finished blower to Chu Feng.

“Well, that’s it, then sew sticks on both sides.” Chu Feng nodded with satisfaction.

“Okay.” Yun Xin picked up the needle and thread and got busy again, and spent more than ten minutes fixing two two-finger-thick pieces of wood to the blower.

She cut the twine again and said with a smile, “Done.” ”

“I’ll try.” Chu Feng took the blower, grabbed the wooden sticks on both sides with his hands, opened them, and then closed them inwards, squeezed the air into it, and then discharged it through the bamboo tube.

“Whew~~”

The bamboo tube was aimed at the girl, and the wind blew her long hair up.

“The wind is still quite strong.” Yun Xin’s eyes lit up, and then he quickly reached out to collect his fluttering hair.

“I’ll try.” Liu Yimeng opened her mouth full of curiosity.

“Give.” Chu Feng casually handed the blower over.

“Hee-hee. It’s fun. Liu Yimeng held up the blower to her sister, and there was a wind blowing out between the opening and closing of her hands.

“…” Liu Yiqiu’s hair fluttered, fun? Tomorrow you’ll have to play.

She reached out and brushed the long hair from her face, and said in a nonchalant manner, “Don’t play, I can’t open my eyes.” ”

“Hey, let’s play a little longer.” Liu Yimeng smiled and giggled, the speed in his hand became faster, and the wind became stronger.

After a while, Liu Yimeng rubbed I’s head in grievance, and then sat down on a wooden chair, holding a wooden needle in her hand to help make the remaining three blowers.

Liu Yiqiu also helped on the side, one for each of the three women, and soon the remaining three blowers were ready.

“Well, it’s okay.” Liu Yimeng put down the wooden needle in her hand and tried to drum the blower in her hand, and the wind whistled.

“Very well, tomorrow you will use your own.” Chu Feng laughed softly.

“No problem.” Liu Yimeng made an OK gesture and played with the blower he made with great interest.

The corners of Chu Feng’s mouth rose, hoping that the Yuanqi Maiden would still be able to maintain such a high level of enthusiasm tomorrow.

Time passed slowly, and several people who finished the blower played mahjong for a while, and finally went to the bath under the urging of Chu Feng.

As the night grew darker, the four people who had finished washing lay down on the large bed.

“Good night.” Liu Yimeng’s soft voice sounded.

“Good night.” Yun Xin responded softly.

The young girl turned over, reached out and wrapped her arms around Chu Feng’s waist, and it didn’t take long for her to fall into a deep sleep.

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