The next day, Su Yuan came to the workshop, cleaned it up, and soon Xu Kui came over with two large barrels of butter and mutton fat, and the two of them set up a big iron pot and began to boil oil.

"Master, this is the legendary ancient method of oil quenching?"

Xu Kui watched with excitement as Su Yuan poured the mutton fat into the butter little by little, the air exuded a rich fragrance, and asked curiously: "I have also tried a lot of oil quenching, industrial, chemical, and I really haven't tried to use pure animal oil." ”

Su Yuan put down the oil drum, matched it according to the proportion provided by the broken sword, and explained: "Where would there be industrial oil quenching agents in ancient times? ”

"Butter and mutton fat are two to one, boil them for two hours on high heat, take their essence, and remove their dross before they can be used for oil quenching. ”

Emi Yanagi next to him was engrossed, he had long heard that there was a mysterious ancient method of oil quenching in Longquan, and today he was finally able to see it with his own eyes, listening to Su Yuan's explanation, and quickly wrote it down by heart.

Two hours and at least six hours, Su Yuan naturally couldn't waste it, took out a basin of yellow mud, poured it into the cold spring well water, and began to clean.

"Sure enough!" The moment the two merged, a dazzling golden light erupted in front of him, and Su Yuan was overjoyed in his heart, the yellow mud and cold spring water were indeed a perfect match.

Whether it is yellow mud or the cold spring of the leyline, it is rich in trace elements and is produced naturally, which is simply harmless for quenching.

"Master, can I help?" Seeing Su Yuan and Xu Kui busy, Emi Yanagi mustered up the courage to ask to join.

"If you don't want to be dirty, knead the cleaned yellow mud with your hands, as if kneading dough. ”

Emi Yanagi hurriedly ran to Xu Kui's side, picked up a large basin of filtered yellow mud, rolled up her sleeves and began to dry. Su Yuan looked at the expression of the eldest lady and nodded secretly, the child can be taught.

"Miss, why don't we come?" The two bodyguards next to him looked at the eldest lady sweating profusely, and couldn't bear to say: "This kind of physical work is more suitable for us." ”

"Stay away from me!" Emi Yanagi scolded loudly, secretly looked at Su Yuan not far away, and said in a low voice: "It's rare for the master to give me a chance to fight, it is the greatest favor for the swordsmith, you guys are honestly standing next to you!"

Watching the bodyguard retreat helplessly, continue to knead the yellow mud, and carefully clean up the impurities, for sword casting, every detail can determine success or failure, and it cannot be sloppy at all.

The three of them worked hard, this was the first time Su Yuan used the Five Elements Technique to forge a sword, and he definitely had to do it himself, plus there were two senior helpers, the progress was very fast, and all the yellow mud was cleaned up in the morning, exuding a vibrant glow in the sun.

"Can you still hold on?" Su Yuan looked at Emi Yanagi, who was sweating profusely, and it was really difficult for this 100 billion lady to come all the way to make peace with the mud.

"Rest assured, this amount of exercise is nothing. Emi Yanagi handed over the Longjing tea brewed with cold spring water with both hands, and said confidently: "Master don't underestimate Emi, practicing kendo in the past was much more bitter than this!"

Su Yuan nodded with satisfaction, it was best not to be squeamish, and explained: "Don't underestimate these yellow mud, not only quenching, but even charcoal must be used to raise the temperature, it is the best carburizing agent sent by God." ”

"As for the earth-covered burning blades of your dreams, use them as well, the effect will definitely be better, and you will know when the time comes. ”

Emi Yanagi looks at the yellow mud that is not amazing, in her eyes it is now more precious than gold, the so-called covering soil burning blade, soil is the most critical factor, now understand that whether it is oil quenching, or covering soil, it is the use of high temperature to continuously inject various trace elements into the sword, further improve the quality, to achieve the effect of raising the sword.

After eating at noon and taking a short rest, the yellow mud was almost finished, Su Yuan took out the pine charcoal and evenly smeared the yellow mud with a brush, which was one of the secrets of Longquan's sword casting.

Man is the law of the earth, the earth is the law of the sky, the heaven is the law, and the Tao is the nature.

This is the principle that one side of the water and soil supports the other side.

Many things leave this acre and three points of land, and they immediately turn sour, such as iron stick yam, when the little devil returned to China for transplantation, he directly used an airplane to pack all the soil, and high-tech imitated all the growth environment, what was the result?

Farts can't grow!

Huainan is gardenia, Huaibei is orange, nature's magic can not be simply copied, which is why Longquan has been the capital of sword casting since ancient times.

The kaolin of Jingdezhen, the purple sand mud of Yixing, and the agarwood and sea yellow of Qiongzhou are all the same.

Sure enough, there was originally a lot of pine charcoal that shimmered yellow light, and after fully absorbing the yellow mud, it actually emitted a trace of golden light, and the effect of one plus one was far greater than two.

In the afternoon, all the charcoal was smeared with yellow mud and dried in the shade, Su Yuan asked Xu Kui to find a large bucket, beat seven or eight buckets of water from the cold spring well, poured it into the wooden bucket, and put it in the brightest place in the backyard where the moonlight was brightest.

"Master is using cold spring water to absorb the essence of heaven and earth, especially moonlight, to yin to cold, is the best way to quench water. ”

After listening to Xu Kui's explanation, Emi Yanagi couldn't help but sigh at the breadth and profundity of the sword, she never thought that she could play like this!

"That's it, hard work today. Su Yuan washed his hands, was busy all day, and finally completed the preparations, and waited for the oil, water and charcoal to dry overnight, and he could officially start forging the sword tomorrow.

The time was not early, and looked at Emi Yanagi and said, "Go back to the hotel early to rest, tomorrow is the main event." ”

Emi Yanagi smiled slightly and said: "Master don't worry, you don't have to go all the way back to the hotel in the future, I have already bought the next door, and I will serve by your side in the future, so that I can be on call." ”

Su Yuan was stunned, the little girl had already prepared? It doesn't matter, it's better to be close, and the province is running around. Tomorrow is the key, the key moment for the reappearance of the Five Elements Casting Sword Technique.

"Master, is this really a meteorite?" Emi Yanagi left, Xu Kui took a bath with well water, and studied the meteorite bare-chested for a long time, and said in confusion: "The weight is not too overwhelming, and the density is not enough?"

Su Yuan smiled and said nothing, in fact, he was also a little puzzled, it stands to reason that the greater the density of iron ore, the better the texture, but the meteorite is obviously much lighter, if it weren't for the Five Elements Technique, he wouldn't have taken a fancy to this strange shape.

Suddenly remembering something, he asked, "How many swords do you have in your hand?"

Xu Kui scratched his head and calculated: "Last time, you asked the third master to sell Jin, and the next day he took five handfuls, and there were only eight left." ”

Su Yuan nodded, this mission not only required to create a golden light sword, but more difficult was to cut off ten yellow light swords. Others are not stupid, who is willing to let you cut millions of treasures?

It's a pity that the Seven Star Sword is sold, after all, he needs start-up capital, otherwise he won't miss the cold spring well and workshop, but the Lianhua Sword is a bit of a loss when it is sold to the fat man.

The system only asks for ten swords, and does not say that it must be someone else's thing, in case there are two missing in the end, and the child can't afford to trap the wolf, and spend money to get it.

Su Yuan asked Xu Kui to bring all the swords stored in the Famous Sword Villa tomorrow, and at least two or three yellow light swords, in case of emergency, to complete the task bigger than the sky, and the others are floating clouds.

Put down the meteorite mine and ordered: "Open the furnace tomorrow, I estimate that the melting point of meteorite iron is high, and the firepower will be increased." I'll hit the small hammer, and the sledgehammer will be handed over to you, and as for how many times to fold, it will depend on the situation. ”

Xu Kui did not hesitate at all, in his opinion, now that he is learning from Su Yuan, his level is increasing day by day, and the garbage in the past is not eye-catching at all. I am very much looking forward to tomorrow, and it is a great honor to be able to forge a sword with the master.