After checking all the two baskets of green charcoal and ore, Old Man Gan had to admit that this boy who held his token would always bring him new surprises.

However, he did not intend to give the other party a chance to be proud, and still said in a stiff tone: "Pick two more baskets of green charcoal, the quality should not be lower than this basket!" The expression on his face could not tell whether the basket of green charcoal and ore in front of him was suitable. Perhaps it was just for the sake of a rookie, so he could barely pass the test.

The first time I took the exam, and the second time I became a pure worker.

There were two more baskets of impeccable green charcoal, and the old man didn't even want to find fault. He then thought that most of the green charcoal with the best quality backyard had been selected, and the remaining quality was much worse. He suddenly felt a little painful. The cost of this fire was a bit high.

While placing green charcoal and ore, Old Man Gan kept talking: "There is an infinitely wide furnace in this world. The blazing fire burns all things, which not only produces all things and refines all things, and the life and breathe are endless. Many wonderful changes are all in it. The boy is optimistic that once the fire rises, it will continue like this world. I have only a few times of fires in my life."

Not only Li Xiaobai, but even the three apprentices widened their eyes.

What the old man said is not a false statement. The high temperature that can melt gold and iron will never be extinguished all day long, making each fire brick vaguely appear mottled glass traces in the smoke and fire day after day, and it seems to have re-crystallized. Compared with the dirty smoke and fire inside the shop, the fire bricks in the furnace are the most powerful evidence that records the background and qualifications of the shop.

Inside the smelting furnace of Ganji Sword Store, the fire bricks are clockwise spiral piled, with a large bottom and a small top, just like a large upside down urn, which can evenly condense the firepower and improve the combustion efficiency of charcoal fire.

It is easy to extinguish the fire in the blacksmith shop, filling up sand and blocking the air outlet. It can gradually be destroyed in just one night. If you don’t care about the life of the fire bricks in the furnace, you can pour three buckets of water into the fire immediately.

Unlike the firewood stove in the house, one-third of the firewood is filled with fire, and then a handful of rolled straw is lit with a fire skewer. After the flames gradually become stronger, use bamboo tubes or bellows to send air into the fire stove. The wind helps the fire power, and the fire can be generated in a blink of an eye. The fire in the blacksmith shop is a tedious task.

The bottom is grass straw, and layers of green charcoal are laid to keep the largest gap between each other as much as possible. This is just a stove. The ore put into the crucible needs to be broken, and the visible impurities are manually screened out, and then mixed with green charcoal and some other things.

The sword shop is no better than a real iron smelting workshop. There are not many ores each time. At most, it is only enough to build about ten sword embryos. If the swordsman is more picky about the craftsmanship, it is rare to get two or three qualified swords per furnace. The rest are not sold or rebuilt.

The flames lit up little by little deep in the furnace. An apprentice slowly turned the wind wheel of the new bellows and sent fresh air into the furnace. The burning of the fire gradually accelerated. More heat accumulated in the grass straw at the bottom of the furnace, and finally burst out with more violent flames, licking the large pieces of green charcoal, making them red together, glowing and heating together, forming an unstoppable chain combustion.

The turbine blades inside the bellows whistled and the air volume became larger. The first ray of flame passed through the stacked green charcoal and came to the furnace body. More and more, my flames rushed up. The flames reflected the reddish old man Gan's face and also illuminated the entire shop. The heat waves rolled up, dispersing the cold temperature of late autumn and early winter. It was warm as spring within a few feet, and it continued to increase.

There is no need to put fire into the crucible. The cauldron body is surrounded by the fire and becomes brighter little by little. Widths of blue smoke appear in the green charcoal particles mixed with the ore sand. A slow coking reaction suddenly occurs. Suddenly, a clear flame spews out. The inside and outside of the crucible feels one, and the air volume sent by the turbine blade reaches the highest, far exceeding the replaced old bellows. The orange-red fire easily shows a faint blue-blue color, which is the perfection that swordsmen are most satisfied with.

"That's it, very good, very good! Are the Nifan ready?"

Old Man Gan didn't care about the burning light and heat emitted by the fire. He narrowed his eyes slightly and stared at the changes in the crucible. It had turned orange and yellow inside. It could not tell which ones were green charcoal and which ones were ore sand. Among the flames that rose from time to time, the impurities began to float up and condense into blocks, and then cracked, and then continued to condense and cracked again. As the cycle continued, all the difficult-to-melting components such as useless impurities in the ore sand and green charcoal were precipitated.

Hearing the master's words, the three apprentices quickly lifted a mud piece as big as a bucket to the edge of the stove.

"The gold liquid needs to be included in the model tool and condensed into a sword embryo. The sword mold can be used with black iron, steel model and mud model. Which model tool is suitable for swords? This time I used a mud model. I made a mold with wax, wrapped with paste mud, leaving only the air holes and gold liquid to pour into the inlet, dry for a few days, and then ironed to make the wax melt out, and then got a complete mud model. The advantage of the mud model is to make the sword embryo tough but not brittle, the embryo is uniform and orderly, and the pores and impurities are often collected at the inlet of the gold liquid, which can be discarded. The disadvantage is that the sword embryo needs to be broken and the sword embryo is taken. The mold does not exist, and every time the sword is cast, it needs to be made..."

While talking about the craftsmanship, Old Man Gan kept scooping impurities and dirt floating on the red iron water in the crucible with a long-handled steel spoon, and then discarded it in a stone mortar. Then black smoke rose and Mars kept splashing out from the mortar.

Li Xiaobai, who was standing beside him, rolled his eyes, you just made a sword for me, how could he have so much nonsense?

I have never heard of eating eggs and need to know what this old hen is like. What is this bad habit?

Perhaps because he noticed the change in Xiaobai's expression, Old Man Gan suddenly turned into a red steel spoon, and it was immediately burning, scaring this guy to take a step back.

"Hmph! I am in a bad mood and I am willing to tell you so much. If I can't remember, Humph, go by yourself!"

It seems that I will get out of the way if I don’t sound nice.

All the three apprentices were silent. Even though Old Man Gan was talking to Li Xiaobai, he seemed to be cursing at the three of them all day long, and the three of them were almost conditioned reflexes.

“Yes, yes!”

With so many tricks on ordering flying swords, Li Xiaobai personally experienced the difficulty of being hard to find a sword.

Damn it, when the flying sword is obtained, the labor and capital will go as far as it can, and I will never want to come to this broken shop again.

"I said just now, have you remembered it?"

The red steel spoon has not been moved away.

"Tell me!"

Li Xiaobai nodded like a chicken pecking at rice.

"It's good to remember. Today I will do it for you all the time. Don't go back tonight. Just stay here to practice!"

Old Man Gan stared at Li Xiaobai fiercely, still full of suspicion, but slowly moved the steel spoon away.

For some reason, when the three apprentices heard the master's words, their eyes lit up, and their fiery eyes turned back and forth on Li Xiaobai and the master.

"Do you want to stay?"

Li Xiaobai shrank his neck and pointed at himself. He never thought that he would stay in this dirty and broken shop. Even the lowest-end shop might be cleaner than here.

"I am no longer as young as I was. I am not energetic. I have a few tricks a year. Is there a rare opportunity? Do you want to waste it in vain?"

The steel spoon that had not yet dissipated seemed to be about to turn back again. Li Xiaobai was so scared that he shook his head and said quickly: "No, no, no, no waste, what Mr. Gan said, everything is up to you."

Although he has an invincible sword light, he never thought of using it to bully or kill innocent and kind people. Although this old man Gan's temper is a bit weird and irritable, he is not a bad person after all, so it is not surprising that he is controlled by the other party in this way.

"Okay, today I will open your eyes!"

Old Man Gan finally nodded with satisfaction, and began to stir the steel spoon in his hand in the crucible. At the same time, he said: "Although the green charcoal is of high quality, it is only mortal charcoal after all. If you want to melt magic weapons, you still need special charcoal fire, such as Wuliu charcoal from the Dongyi Fusang, Halaxy wood from the Western Desert, the husk fruit from the Baiyue Land, and the coal essence from the Loess Plateau. However, these charcoal fire can only melt the weapons used by mortals. The flying sword of the Taoist immortal family needs to be smelted and forged with the fire crystal spiritual fire excavated from the danger of earth fire. The mortal fire of the immortal family is difficult to damage because of this. If you have time in the future, you can go to the Luofu Mountain area of ​​the Baiyue Land to find earth fire. Maybe you can find one or two fire crystals. However, even if you get the fire crystal, you still need to activate the spiritual energy to trigger the spirit fire..."

From charcoal fire to fire crystals, and to how to melt, Old Man Gan kept talking nonstop. When there were no more impurities in the crucible, less than one-third of the bright orange-yellow gold liquid remained. Then he scooped up a spoonful of gold liquid, and his thin arms pissed up, and poured it smoothly and quickly into the mud that had become hot and scalding by the stove.

One spoonful of fills a mold, and then another spoonful of fills ten molds in a moment. Old Man Gan gasped and took off a dirty towel from his waist to wipe his sweat, saying, "Please up the second mud and empty the crucible."

There was more than one crucible in the sword weapon shop. When the three apprentices were busy cleaning up, Old Man Gan filled the second crucible and asked the apprentices to send it into the stove.

After one cauldron was over, three mud flakes were poured in in succession. The old man gave up the stove and crucible to his disciples to create cheap weapons to continue practicing.

Of course, people will come to buy these weapons. In addition to filling the stomachs with Old Man Gan and his disciples, the money they earn is used for the normal operation of the shop. After all, materials such as Fan, charcoal, ore, are a considerable expense.

As the mud flask cooled, the gold liquid that had originally emitted light and heat gradually dimmed and condensed. It was not until the baked mud flask was smashed open little by little with an iron hammer, and then ten still hot sword embryos were obtained.

If it weren't for seeing it with your own eyes, it would be hard to believe that these ten black iron bars were actually the original form of a sword.
Chapter completed!