Duan Qing didn't dare to adjust the water layer that assisted in regulating the furnace temperature, but chose to remove some true qi slightly, and the flames in the palm-sized combustion chamber lost their suppression, and there was a tendency to rise suddenly.

Just this moment, Duan Qing felt the updraft of the furnace temperature that was immediately out of his control, and in an instant, the melted material bubbled, gurgling, the steam wafted, and the material quickly decreased, Duan Qing was startled in his heart, and hurriedly suppressed the firepower, but it was too late, the material of this Qi Benefiting Pill was piled up in the inner room like a burnt fried egg.

"This ...... Fast! It's so fast that I can't react!" Duan Qing was slightly stunned, and finally knew how the lumps of medicinal residue on the garbage mountain came from.

The first failure, Duan Qing didn't care much, the first time to alchemy, and the samadhi true fire, even if it was a samadhi true fire that was missing, once it was out of the shackles of the refining master or the container, it was really quite explosive and extremely difficult to control.

In fact, at this time, if Ding Wenwen, who had refined the Samadhi True Fire, controlled the furnace temperature, and assisted by what he knew and knew on the side, he would be much more busy and trouble-free than if he was alone, but even if Ding Wenwen was not most illiterate, Duan Qing did not plan to do that.

Seeing Duan Qingyan staring at the Dan furnace in a daze, Ding Wenwen's heart was broken, wasn't he stumped? No, if he didn't refine the pill, when would he be able to take the pill? After this village, there is absolutely no such shop, and hurriedly persuaded: "It's okay, how can someone be so skilled for the first time, let's find it after the forging period." I feel that you are just nervous because you care too much about the materials, relax, don't focus all your attention on one place, and I will collect the materials when they are gone. No big deal. ”

In fact, Duan Qing was ready to fail early in the morning, thinking back to the process of Fang Cai's instantaneous change, reflecting on himself would definitely be beneficial, but he didn't expect Ding Wenwen to open it like this, and he was really a little moved in his heart.

Ding Wenwen smiled slightly, and said, "Think about it, when the mother is here, will the son be far away?"

"......" Duan Qing was speechless for a moment.

After experiencing a failure, Duan Qing couldn't help but sigh in his heart, this yellow-level Dan furnace is only more than one and a half feet high, it can be said that it is quite pocket-sized, it is said that in some major sects, there are caves and blessed lands with different fires such as earth fire, among which the Dan furnace is several zhang high, refining a furnace of pills can be as little as a few months, and most of them are calculated according to the years, and there are countless heavenly materials and earth treasures put in, and finally only one pill is refined......

How difficult it should be to refine!

That height... Duan Qing looked up at the roof, and through the roof, he saw the sky.

Ding Wenwen also raised her head, somehow, at this moment, she actually understood Duan Qing's state of mind, and it was precisely because of this that she looked forward to the future even more.

When she looked at Duan Qing again, she found that he lowered his head, opened the lid of the furnace, and cleaned up the medicine residue, the fire was sometimes magnified, sometimes reduced to the size of a fingernail, but it burned all the residues of the medicine residue in the inner room, was he practicing temperature control techniques when cleaning up the residue?

Duan Qing did think so, after a few debuggings, although he was not very clear about the most suitable temperature for the Yiqi Pill, he had some experience in controlling the temperature of the different fires, and gradually explored it.

It was another material, and when it was completely melted and gradually fused into a maroon, Duan Qing gradually increased the temperature of the furnace, and on the top of the maroon liquid medicine, a trace of black lines appeared, these are the medicinal residues, which also contain some medicinal power, but it is very small, and it contains a large number of impurities, if it is not purified in large quantities, it is almost meaningless.

Duan Qing's hand holding the left ear of the Dan furnace gradually tightened, driving the true qi to drive away those residues and let them enter the slag discharge port, but after several times, Duan Qing was stunned to find that these residues were quite difficult to fiddle with, and the true qi pushed over, and the residue that was originally still a wisp suddenly turned into a piece, and the area spread was larger, Duan Qing was speechless, so he could only gently stir the medicinal liquid with the true qi, as if the blood foam was skimmed off when the water was flying, so that these residues gathered in one place.

After stirring for half an hour, he finally forced the residue to concentrate near the slag discharge port, Duan Qing used a point stronger than last time, and the technique was also a point faster, and he pushed the residue out with a breath, but also swung out a small part of the liquid medicine, which was a big loss, but compared to the scorched material, it was much better.

Therefore, Duan Qing's state of mind was not disturbed in any way, he only thought about it now, even if he only refined one pill, it would be a milestone, so he continued to carefully control the temperature, and some experience had been accumulated, the temperature was according to the experience of the first failure, he took the temperature of the middle section, and it fluctuated up and down very slowly, not exceeding the high and low bars, and the medicinal liquid really stabilized, and it was constantly tempered there.

Another three hours passed, fortunately, there was no sunlight in the basement, the concept of time would fade in people's consciousness, the space with a length and width of only two zhang was already full of medicinal smell, the temperature of the fire made the temperature of this cramped space very high, Duan Qing's nose was covered with beads of sweat, and the hair on Ding Wenwen's forehead was also wet, but she was reluctant to leave at all, because the medicinal liquid of the Dan furnace began to beat, as if it was bursting with splashes, and it was gradually dispersed by a mysterious force, becoming one by one, beating, rolling, looking so naughty and cute。

The beads of sweat on Duan Qing's forehead had turned into beans, knowing that this was a precursor to becoming a pill, but the temperature of the furnace was even more difficult to control, because there were already two balls of liquid medicine that had jumped into the slag discharge port, and it was too late to even control it with true qi, so he was a little at a loss, so he had to gradually lower the temperature of the furnace, so as not to make the liquid medicine run out.

Unexpectedly, gradually, the liquid medicine fell back to the bottom of the inner chamber, but it was no longer a change like a drop of water falling to the ground, but it became a round entity, rolling gently in a circle at the bottom of the inner chamber, the attention of the two was completely attracted, I don't know how long it took, the liquid medicine finally stopped rolling, honestly, the round surface looked shiny.

Duan Qing opened the lid of the furnace, and there were more than thirty pills lying at the bottom of the inner room, Ding Wenwen's eyes lit up, and she was about to reach out to take it, but was immediately stopped by Duan Qing: "Are you going to take a chestnut from the fire?"

Ding Wenwen grinned, stretched her fingers into the combustion chamber, and the Samadhi True Fire obediently jumped on her fingertips, re-transformed into the size of a fingernail, and then disappeared, the Dan furnace because of the water layer in it, the temperature soon lowered, this time she was also obedient, she glanced at Duan Qing first, but saw him frowning and indifferent, she didn't want to wait, she reached out to take it, but when she touched a pill, the pill was like lime, and it turned into powder in an instant!