Facts have proved that Xuan Ming's determination is still very strong. Several times he wanted to give up, he would just look at Xuan's smiling little face, and then immediately be full of fighting spirit and continue to persevere.

It's just that there is a limit after all, plus Xuan Ming's flesh and bones are weaker than Zhi Xuanwei, and in the end, Xuan Ming just barely succeeded in opening his pulse.

"Yes, you lazy slippery head persevered. Xuan Yuan looked at Xuan Ming, who was a little prostrate, and didn't know where to take out a jade bottle containing a pale yellow liquid - it was the nectar of the drinking stamen flower that Xuan Yuan had collected before.

Xuan Ming took the jade bottle and drank it in one gulp, it was smooth and sweet, and even the feeling of soreness and fatigue in his whole body dissipated a little, and his expression suddenly lit up, and he looked at Xuan Yuan with a blank look.

Xuan Yuan felt both funny and a little helpless, this little ghost still has the leisure to care about food, and it looks like he didn't do his best when he accepted the training of the year star stone just now.

took out the other two bottles of nectar from his arms and gave them to Xuan Yuan, and Xuan Yuan advised: "In the next few days, you and your senior sister should not relax, and be diligent in practicing martial arts." If you want to officially enter the path, you still have to persevere in accumulating and cultivating essence, otherwise you won't even be able to pass the threshold of refining and refining qi. ”

"Uh-huh!" Xuan Ming took the jade bottle and nodded his little head busily.

"Okay, you guys take a shower for a while, let's rest early" After speaking, Xuan Yuan walked out the door.

There was a faint conversation between several people behind him.

"Hehe, do you want to drink nectar?"

"I want to drink!" this is Yuanle Nuonuo's voice.

"Okay, here you go. Senior sister, do you want to drink? I'll tell you, as long as you don't hit me in the head in the future, I'll ...... Hey, hey, why are you like this, sister, how can you snatch my things! You can try it again!"

"Bang-"

"You can't just be lighter......"

......

......

There is no time for cultivation in the mountains, and more than ten days have passed in a flash, Xuanyuan pushed open the door of the Taoist temple, took a breath of fresh air with a slight coldness, and suddenly felt refreshed.

After these days of cultivation, Xuanyuan's state has completely recovered, and the experience and insights in the previous battle with Ahereno have also been digested, which is slightly smaller.

It's time to open the furnace for alchemy and hit the dual realm.

The art of alchemy has a long history in the history of Taoism, and it is divided into two theories: inner and outer dan. Those who are in the inner Dan are the fetuses of the dragon and tiger, and those who are in the outer Dan are cooking grass and stones, and turning yin into yang.

And the furnace alchemy that Xuan Yuan said is naturally refining the outer pill. Generally speaking, alchemy is divided into three steps: chemical medicine, liquid, and pill.

Chemical medicine refers to the refining of medicinal materials. or in a gaseous state, or in a liquid state, or in other more exotic states, so as to better exert the medicinal properties. The most important thing in this step is to master the heat: if the heat is large, the medicinal materials may turn into flying ashes, and if the heat is small, it is difficult to refine the medicinal properties of the medicinal materials.

The second step is to integrate the main drug and the auxiliary drug, and mix the characteristics of each medicinal material. What needs to be paid attention to in this step is the adjustment of the amount of medicinal properties, and this is when the Danfang is very important - sometimes, the error of the last number on the Danfang may lead to the failure of alchemy.

In general, the most important thing in the first two steps is that the alchemy experience has been selected by the Danfang, but the third step is to become a Dan, which requires a unique inheritance - this step also blocks the vast majority of people from the door.

Cheng Dan, as the name suggests, refers to the formation of pills. This step, of course, is not simply to knead the liquid medicine into a pill, it requires a specific pill recipe, in order to attract the mysterious energy between heaven and earth to encapsulate into the liquid medicine to form a pill, engraved with a unique Dan pattern.

If there is no specific Dan formula, cannot attract the mysterious energy between heaven and earth, and cannot be engraved with a unique Dan pattern, it cannot be counted as an elixir, but can only be called a pill or a pill.

During the trip to the Yan Turtle, Tang Lao once took a pill, and at that time, Xuan Yuan unconsciously asked, "This is a refined pill", and the answer given by Tang Lao was whether it was - the reason was that the pill did not have a pill pattern.

It can be said that everyone can judge the quality and grade of the pill just by observing the Dan pattern.

The nine patterns of Dansheng are the most, people can first judge the grade of the pill by the number of pills, and secondly, by observing the clarity and condensation of the pills, to judge the quality of the pills.

Each type of Dan Jue has its own unique Dan pattern: it may be different in color, or in different shapes, or in different areas......

For example, in the "Nantai Jade Miao Dan Sutra" obtained by Xuanyuan, the Cheng Dan recipe recorded is the [Nantai Yu Miao Cheng Dan Seal], and the Dan pattern it forms is the milky white Qingyun-shaped Dan pattern.

It is worth mentioning that each Dan Jue has its characteristics, for example, the Nantai Yu Miaocheng Dan Seal has an additive effect on the main medicine of water and wood, and the Dan formed by the Nantai Yu Miaocheng Dan Seal will have slightly less impurities than the general Dan Jue.

Of course, the Nantai Jade Miaocheng Dan Seal also has its limitations: due to the limited amount of heaven and earth energy induced by the Danjue, it can only be used on second-order and below level pills.

But overall, Xuan Yuan is still very satisfied with this.

When I came to the Danfang in the back mountain, the purple clam stove was placed in the center. What it was like a month ago, and what it is now.

Take out more than a dozen boxes from the cabinet next to them, open the lid of the box and place it next to the Dan stove. After carefully calculating the amount of these medicinal materials and dividing them into types, Xuan Yuan took out the ten spirit stones he had exchanged before from his arms, and selected four of the grooves on the tip of the tongue that were inlaid with the flame clam pattern on the surface of the Dan furnace.

Suddenly, a transparent air flow spread from the four spirit stones towards the whole body of the purple Dan furnace, and the originally silent flame clam pattern began to slowly glow, glowing with a faint red light.

Xuanyuan knew that the purple clam road had been awakened, took a deep breath, sat cross-legged in front of the Dan furnace, and pointed a little forward.

Under the attraction of mana, the transparent air flow flowed even faster, and on the inner wall of the Dan furnace, which was invisible in Xuanyuan, four flame clam phantoms appeared, and purple-red flames appeared out of thin air, and the temperature suddenly rose.

Xuanyuan was calm, but continued to output mana continuously and steadily.

Slowly, as time passed, the crimson light on the surface of the purple clam furnace became more and more obvious, and it was clear that the temperature had risen to a certain level.

At this time, Xuanyuan made a move. With a wave of his big sleeves, the Condensing Grass placed on the side was the first to be thrown into the Dan furnace, and in just an instant, it turned into a cloud of gas under the intense high temperature.

Without hesitation, yellow essence, ginseng, Zhongyuan grass, cold heart flower...... Under Xuanyuan's control, seven or eight kinds of medicinal herbs flew into the Dan furnace like dumplings.

Subsequently, Miao Lincao and the remaining auxiliary medicines were put in turn, and after the medicinal properties were fully refined, Xuanyuan slowed down the mana infusion, causing the temperature in the Dan furnace to begin to drop.

In just a few seconds, a special taste suddenly escaped from the tip of the tongue of the four flame clam patterns.

Xuan Yuan's brows furrowed.