Ouyang Feng looked at the two more arrogant middle-aged people, snorted lightly with disdain, glanced at Mingyue, and saw the meaning expressed in each other's eyes, the two had already made a decision, even if the refining and alchemy level of these two people was high, Ouyang Feng would not choose to invite them to join. If nothing else, just because of the arrogance of the two of them, Ouyang Feng is the most disdainful of this kind of person.

The chief steward of Allen saw the expressions of Ouyang Feng and Mingyue, and sighed helplessly, these two middle-aged people have a lot of attainments in refining weapons and alchemy, but they are not very good, relying on their own level far beyond others, they don't put anyone in their eyes, especially in these years, the temper of the city lord of Yaheng has improved a lot, these guys are a little bit aggressive, and they are becoming more and more arrogant, and they don't even pay attention to him, the big steward, and they often disobey the yang and the yin.

Alan patiently introduced the qualifications of the alchemists and alchemists, Yaheng smiled faintly and turned his head to ask Ouyang Feng: "How is it?

Ouyang Feng shrugged his shoulders and said, "It's not that I don't trust you, brother, but I still think that seeing is believing, if you want them to refine a furnace of elixir or magic weapons or something, I'll take a look and then decide?"

Yaheng smiled and said, "No problem, I didn't expect you kid to be so cautious, haha." Ouyang Feng smiled, he didn't want to see what alchemy and refining tools these people were showing, Ouyang Feng wanted to take this opportunity to go to the mysterious refining hall and alchemy hall to have a look, but Ouyang Feng's plan was frustrated, because there was a ground furnace in Yaheng's City Lord's Mansion.

The group came to Yaheng's Dan room, where there were more than a dozen earth furnaces, large and small, enough for these alchemists and alchemists to use together. Although Ouyang Feng was a little disappointed because he was not able to go to the Refining Hall. But to be able to see these masters refining pills and magic weapons with their own eyes. It's also a good thing, especially for him, who is learning alchemy, this opportunity is even more rare.

While the masters were preparing, Ouyang Feng went around a furnace and studied for a long time, but he didn't see a reason, and it was not good to ask in person, so he had to give up and prepare to go back and slowly find the answer.

After some preparation. More than a dozen refiners and alchemists each found an earth fire furnace, opened the fire throat to heat the Dan furnace and the Ding furnace, and after reaching a certain temperature, they threw different materials into the Ding furnace at about the same time, and more than a dozen people acted together, Ouyang Feng was dazzled for a while, and finally gave up the greedy idea of watching them all, and only stared at one person's whole body to watch.

The elixir refined by the alchemists was similar to the pill of Bigu Dan, and there was not much skill to speak of in the refining of this elixir, for these masters. It can be said that it is similar to that of a journeyman, and it basically does not take long. The fragrance of medicine wafted out of the Dan furnace, and then the Dan medicine came out.

The refining time is longer than the alchemy, and when the pill is baked, the refiners will refine various raw materials into semi-finished products, Ouyang Feng took advantage of this time to rush over to watch the pills that had just been refined.

At a glance, Ouyang Feng found that although the color and smell of these pills were basically the same, he was quite surprised in terms of the size and roundness of the pills.

Ouyang Feng just looked at most of the pills that had been refined, and didn't say anything, as for the pills refined by the unruly alchemist, Ouyang Feng didn't even look at it, and directly ignored it, which made him almost annoyed and angry when he had been waiting to be praised, if it weren't for Yaheng's presence, maybe he would have turned his face with Ouyang Feng on the spot.

Compared with Ouyang Feng, who has no research on alchemy, he still has some understanding of refining weapons, after all, he and Hongshang have also been specializing in research for several days.

Ouyang Feng came to the side of a refining furnace and carefully watched the refining room refining various materials, but he just watched from the side, but he couldn't learn anything, especially the temperature of the refining materials, which could not be seen by looking at it.

Ouyang Feng was anxious, if he couldn't learn anything at all, it would be a waste of this good opportunity, he hesitated for a moment, but still wanted to ask his own question in the refining room not far in front of him: "This master, how do you master and control the temperature of the purification materials without letting the materials evaporate? Could it be that each material has its own strict standards for refining?"

The refiner who was asked by Ouyang Feng was a young man who looked to be in his twenties, and when he heard Ouyang Feng call himself a master, he hurriedly waved his hand, laughed at himself and said, "Your Excellency, I am not a master, my name is Gaunt, just an apprentice." ”

Then, Gaunt explained: "In fact, there is no fixed standard for temperature, just know the approximate temperature at which the material dissolves, and the rest is to gradually heat up, let the material melt little by little, burn off the impurities, and the control of this temperature depends on your own observation." ”

Ouyang Feng was puzzled: "Observe the temperature?"

Gaunt nodded affirmatively and said, "Well, that's right. ”

Gaunt said that a piece of fine iron the size of an egg was thrown into the furnace, which was not much bigger than a sea bowl, and that he would open the throat below, one, two, three, until the fourth throat was opened. While carefully observing the changes in the fine iron, Gaunt explained to Ouyang Feng and said: "The temperature of the four fire throats of the fine iron is generally about the same, now it is just waiting, the temperature of the fine iron itself rises and melts, at this time, if you want to speed up the melting speed of the fine iron, you can also open one more fire throat, but then you must have a complete grasp of the fire and be able to stop or slowly cool down at any time, otherwise the temperature is too high, and the fine iron will be burned to ashes." Ouyang Feng nodded, carefully watching the changes in the fine iron, he and Hongsheng, but they have been stuck here, and the refined refined iron is either too many impurities in it, or it has been burned into fly ash because the temperature is too high.

Gaunt didn't mind Ouyang Feng's bystanders at all, and explained some of his own experiences softly, and Ouyang Feng listened carefully like a tireless student, nodding his head in agreement from time to time.

Seeing the two of them like this, Ya Heng didn't feel anything, but the refining master was a little unhappy, he felt that even if Ouyang Feng, the so-called noble guest and the city lord's partner, wanted to consult about the refining process, he should come to consult himself, instead of the bold and reckless Gaunt, who did not follow the rules, felt that this was a contempt and insult to himself, and he wanted to go over and scold the two of them, but the Yaheng City Lord was here, and the refining master did not dare to go too far, glared at Ouyang Feng and Gaunt, snorted coldly, and then continued to refine his work.

After Ouyang Feng and Gaunt chatted for a while, the refined iron in the refining furnace had gradually begun to melt, and both of them closed their mouths, staring intently at the refined iron that had turned into a fiery red solution, watching the dots of black impurities inside turn into wisps of green smoke and disappear.

After a while, the solution of refined iron no longer changes, but there are still some stubborn impurities in it, Ouyang Feng looked at Gaunt to see what he would do next, this is very important to Ouyang Feng, because he and Hongshang were stuck here before, how can they not find a solution, if the temperature is increased again, the impurities in it will definitely be refined, but the solution of refined iron will also be vaporized at high temperature.

After waiting for a while, Gaunt didn't open the other fire throats to raise the temperature, but grabbed a handful of light blue crystal particles from the pile of materials he had prepared, sprinkled them on top of the refined iron solution, and withdrew his hand as quickly as he could. Ouyang Feng was surprised to find that when those light blue crystal particles fell into the refined iron solution, they were melted by the high temperature and then burned violently, forming a layer of light blue flames on the surface of the refined iron solution.

Gaunt shielded his right hand with his true qi, picked up the refining furnace and turned it gently, letting the refined iron solution inside rotate in the furnace. In the middle of the hour, Gaunt stopped what he was doing, and poured the refined iron solution into the furnace pot, which had been kept at a temperature and had held several hyphen sizes. Ouyang Feng found that when Gaunt poured the refined iron solution into the Ding furnace, those solutions were no longer free of those stubborn impurities, and they became very pure.

Ouyang Feng looked at Gaunt in surprise, thought for a while and said: "If the temperature of opening an extra fire throat is too high, it will damage the essence of refined iron, you are using this crystal to support combustion, raise the temperature a little to remove impurities, this method is very good." ”

Gaunt smiled innocently and said, "I also made it blindly, my cultivation is not enough, there is no way to suppress the temperature of the fire, and I can only think of other ways." ”

When Ouyang Feng heard this, he looked at the other refiners, and found that other people's methods were really different from this Gangter, when they were refining refined iron to remove the last stubborn impurities, they were all full of true qi after opening the fifth fire throat, and forcibly suppressed the temperature of the flame with true qi, seeing Ouyang Feng's stunned face, he had never thought of this method before.

Ouyang Feng didn't come in vain today, and suddenly found two ways to refine refined iron, Gaunt's other way is to use flame retardant materials to raise a certain temperature, while the traditional method is to rely on the refiner's own cultivation to suppress the flame to the appropriate temperature, both of which are temperature control in the temperature that can not only refine the impurities in it without hurting the essence of the material, but in comparison, Ouyang Feng still feels that Gaunt's method is better, not only saving his own spiritual power, but also the requirements for refiners are not so harsh, basically anyone can use it。

Ouyang Feng felt that Gaunt's method was very good, but when he thought about it, he felt that something was wrong, if this method was really as good as he thought, why did other refiners not use it, but would rather consume true qi and use the traditional method? There must be something in it that he didn't know about, otherwise people were not stupid, why didn't they have to ask for trouble if they wanted to save trouble. (To be continued......)