"This time, the temperature is low, and I can't melt the grass for half a day. Mao Zhe said coldly beside him.

Lian Qingcao is the name of the first medicinal herb that Mao Rui is refining, after five consecutive times because the temperature is too high to damage Lian Qingcao, in this sixth attempt, Mao Rui made the temperature too low, and Mao Zhe scolded him.

Mao Rui looked at Mao Zhe, didn't say anything, and continued to control the debugging temperature of the 'Fire Control Array'.

Like the refining weapon, due to the reason of "Pulseless Technique", Mao Rui, who does not know how to use the fire control technique, has to replace it with a fire control array.

"Poof~"

As a result, the temperature rose uncontrollably, and even the grass turned into a charred black again.

Mao Rui silently cleaned up the Dan furnace, took out a new piece of grass and threw it into the furnace.

Nine Lianqing grasses were wasted successively, and in the tenth time, Mao Rui finally grasped that temperature and refined Lianqing grass into a viscous dark green liquid.

Mao Rui exhaled, took the second medicinal herb, the blue lotus, and threw it into the stove.

"Poof~"

As soon as the blue lotus flower entered the Dan furnace, it turned into ashes with a soft sound, and even the green herb liquid that had been refined was scrapped.

"Didn't Dan Fang say that the temperature of refining the blue lotus flower should be lower than that of Lian Qingcao?" Mao Zhe's cold scolding voice came at the right time, and the sarcasm in his words was not too strong.

"Ping~"

Kicking the Dan furnace in front of him, Mao Rui stood up and grabbed Mao Zhe's collar and shouted: "Are you playing with me? This Dan Fang is fake! There is not even a specific temperature on it, but it is a word with a slightly higher temperature and a slightly lower temperature." ”

When he saw Danfang, Mao Rui was skeptical, and any place where temperature was written was too abstract.

However, he hadn't refined Dan either, so he didn't say much. But after some attempts, Mao Rui broke out instantly.

"There are no such things in the first place, and the same medicinal material is different between different individuals, because the freshness, moisture, and quality will be different, and the temperature required for refining is very different, and it cannot be unified at all. Mao Zhe said lightly.

"Is what he said true?" Mao Rui was skeptical, and turned his head to Cao Ning.

Cao Ning nodded, indicating that what Mao Zhe said was true.

"There's always an approximate range, right?" After Cao Ning confirmed, Mao Rui still asked with luck.

"Yes, but the approximate temperature required for the purification of each medicinal material is obtained by the alchemist through step-by-step exploration, and it is not an exaggeration to say that it is the most valuable experience, and it is impossible to teach people casually. ”

Purification is also the step that Mao Rui is carrying out now, which is mainly to remove impurities from the medicinal materials, which is an ability that every alchemist must master.

And the purity of the medicinal materials after refining determines the quality of the elixir, which is related to the achievements of the alchemist, not a carefully cultivated disciple, and will not be taught at will.

Seeing that Mao Zhe didn't plan to say it explicitly, Mao Rui couldn't either, so he thought about it, opened a spatial crack and rummaged through it.

While rummaging, he kept muttering: "Why is alchemy so troublesome, the temperature changes back and forth, and the refining is much more convenient." ”

In fact, alchemy, like refining, needs to adjust the temperature at all times to avoid damaging the material.

The reason why Mao Rui felt that refining tools was simpler than alchemy was mainly because he had absorbed the refining experience of the Burning Heaven Dao people in his life, and he already had a relatively accurate control of the temperature required to smelt various materials.

If Mao Rui had learned the refining technique from scratch, he would not have said this.

If the knowledge of refining weapons is so easy to master, there will not be very few people in the world who can refine weapons.

Muttering, Mao Rui had already turned out a bunch of technology products from the space bag.

Some of them are Xiuzhen technology that has been researched and transformed by Guan Angran and others, and some are high-tech products that have long existed on the earth.

These tech products also have different shapes, but one thing they all have in common is that they all have the ability to measure temperature, and some even have cameras to record.

Liu Yiyi and a few other people from the earth knew these things, even if they didn't know the function, they didn't feel strange.

But Yin Tong, Cao Ling, and Cao Ning were quite curious, and they looked around for a long time and didn't understand what this was.

Mao Rui took out a large pile of materials and stuffed them into Mao Zhe's hand, pointed to the Dan furnace that was not of a good grade and said, "Come, you show me the Dan Fang according to it, and let me see if the Dan Fang is real." ”

After speaking, he seemed to be afraid that Mao Zhe would be suspicious, and added: "Don't worry, your baby experience will not be passed on." ”

Mao Zhe glanced at the crowd and pondered for a moment before nodding in agreement.

While Mao Zhe was heating the furnace, Mao Rui placed all the equipment near the Dan furnace, turned on all the equipment with cameras, and also spread his consciousness to observe at all times.

When the Dan furnace reached a certain temperature, Mao Zhe began to refine, and Mao Rui took out a pen and paper to record it in real time according to the temperature displayed on all the equipment.

Mao Zhe's alchemy realm can be said to be quite high, and this simplest healing pill is not much difficult for him.

The entire alchemy process was completed in one go, without the slightest pause.

After Mao Zhe finished refining, Mao Rui took the equipment that could be recorded, called up the video and checked it one by one.

In the process of viewing, the paper records are constantly changing. It's three hours, and I'm doing all sorts of seemingly complicated calculations on paper.

In order to cooperate with the research of Guan Angran and others, Mao Rui has made up for a lot of scientific research knowledge.

Everyone couldn't understand what Mao Rui was doing, and after watching it for a while, they dispersed, cultivating and resting, and no longer paid attention.

After a complex calculation, Mauri calculated the different temperatures required for each material at various times.

After the equipment is placed around the furnace, the materials are removed and the refining begins again.

Mao Zhe and Cao Ning, who were cultivating, opened their eyes at the same time and watched quietly not far away. They also wanted to know if it would be feasible for Mao Rui to do so.

Mao Rui observed the temperature changes on the equipment, carefully controlled the temperature, and meticulously put the materials in turn according to his own calculations.

It took less than half an hour for Mao Zhe to refine successfully, but under Mao Rui's prudence, it took an hour just to purify all the materials.

Fortunately, there were no problems in the refining process, which proved that Mao Rui's idea was feasible.

It's just that Mao Zhe and Cao Ning didn't say anything and chose to continue to wait and see. The alchemy process is unpredictable, and anything can happen until it's completely over.

The next step is to perfectly integrate all the purified materials, and finally become Dan under the calcination of Dan furnace.

This step is easy to say, but it can be very difficult to do.

If purification is the most basic skill of an alchemist, then melting pill is a very advanced and professional skill.

Mao Rui's divine consciousness manipulated the purified materials to merge them together, closed the lid of the furnace, and the divine consciousness always observed, and the temperature in his hand was constantly adjusted according to the calculation results.

When he was about to become a Dan, the Dan furnace trembled violently, and Mao Rui was still concentrating on controlling the temperature, not knowing what this phenomenon represented.

But Mao Rui doesn't know, others know.

Mao Zhe and Cao Ning's pupils shrank, and Mao Zhe reminded loudly: "Everyone puts protection on themselves, the Dan furnace is about to explode." ”

After saying that, a layer of shields has appeared on the periphery of his body, and Cao Ning's movements are not slow, and even because of his strength, he has three layers of shields around him, two more than Mao Zhe.

Whether they were cultivating or resting, they woke up one after another under Mao Zhe's reminder, and when they saw that the Dan furnace tremors were getting more and more violent, they didn't ask much, and hurriedly applied protection to themselves.

Mao Rui saw that everyone else had put protection on him, and felt that the Dan Furnace was a little out of control, so he also applied a layer of shield for the sake of conservatism.

"Boom~"

Mao Rui had just finished applying the shield here, and the Dan furnace in front of him exploded with a roar... Furnace fragments shot in all directions.

Although the explosion of the Dan furnace was powerful, it did not cause any damage under the premise that everyone was prepared.

However, Mao Rui was miserable, he was closest to the Dan Furnace and was in the center of the explosion, plus he only used a layer of shield, so that the whole person was now dark.

He wasn't injured, but he was not injured, but the tattered gray robe and white grimace mask on his body turned charred black in the direction facing the Dan furnace.

"Poof~ Hahaha, I said that the Dan furnace will explode, you still don't believe it, hahaha, thanks to this low-grade pill, if the quality is high, the power will be even greater." The moment he saw Mao Rui's appearance, Mao Zhe said directly with a laugh.

Mao Rui was shocked, and his spiritual power poured out and shook a black powder on his body, restoring the tattered gray robe and white grimace mask to their original state.

These two treasures, Mao Rui still doesn't know what grade they belong to, except for being torn open by the ghost king, they have never been damaged, and the explosion of the Dan furnace is just a little dust.

"Obviously followed your steps, why did you still blow up, what went wrong?" Mao Rui frowned under the mask and asked Mao Zhe and Cao Ning.

"The volume of the last herb is a little larger than when I was refining, which caused the impurities to not be expelled, and the fusion was not thorough enough, resulting in Cheng Dan always frying the furnace. ”

"As I told you earlier, the same material is different from each individual, and there are small differences, and it cannot be refined at a fixed temperature. ”

It was hard to stop the laughter, Mao Zhe explained.

Mao Rui did not speak, and stood in deep thought.

"I have a suggestion. Cao Ning said aloud.

Mao Rui raised his head, and Mao Zhe also looked sideways, waiting for Cao Ning to follow.

"Isn't it possible to measure the temperature of those things? Since a fixed temperature cannot be used, is it easier to order it during alchemy based on real-time observation of temperature changes?"

Mao Zhe thought about it, it was true, the biggest trouble for novices in alchemy was that they couldn't accurately control the temperature, and they needed to try again and again, thus wasting a lot of materials.

If it is assisted by temperature measuring equipment, it can greatly reduce the difficulty of control, so that although the fundamental problem has not been solved, it can shorten the number of attempts, reduce material loss, and save a lot of time.

Thinking of this, Mao Zhe said: "Mao Rui, can you install the temperature measuring equipment on the Dan furnace and display the temperature in the furnace in real time?"

The temperature outside the furnace is actually not very accurate, Mao Rui has placed so much outside the furnace, the temperature displayed by the thermometer in each position is different, and finally it has to be calculated.

However, the temperature in the furnace is different, and the temperature in each position in the furnace is the same, so the test is more accurate.