Chapter 4494

At the top of the Dan furnace, there are 36 transparent beads, which are colorless and transparent under normal circumstances. Once the alchemy starts, a bead will light up when the temperature in the furnace rises to a certain height. The higher the temperature in the furnace, the more beads will light up!

This is equivalent to having a thermometer with only 36 scales in the Dan furnace.

Although there are only 36 scales, it is basically enough for most alchemists!

Because... In the process of lighting a bead from the beginning to the extreme, and then lighting the next bead, you can also divide it into 10% to 10% by the brightness of the bead. If it is subdivided in this way, the "thermometer" on the Dan furnace has 360 scales, which is quite fine.

Of course, it is quite difficult to distinguish whether a bead is 30% bright or 40% bright. This still requires some experience.

If the subtle temperature is not clearly identified, it may not lead to the failure of alchemy, but... Most of the refined pills will not be of high quality!

Lu Shan had no experience before, and naturally he could not accurately distinguish what a bead looked like when it was almost bright.

Therefore... He didn't rush to put in the medicine, but when the fifth bead on the Dan stove lit up, he began to carefully adjust the temperature of the Dan stove.

He repeatedly let the fifth bead light up and slowly heat up until it reaches the extreme, and even when the sixth bead began to shine slightly, he began to reduce the temperature of the flame and make the fifth bead dim slowly again!

After doing this repeatedly for six times, he could finally accurately judge the brightness difference of a bead, and then steadily fix the temperature of the Dan furnace at the level of four beads and seven.

The so-called four beads and seven, that is, the first four beads should be lit up, while the fifth bead can only be lit up to 70%!

For the new alchemist... Controlling the temperature is the most difficult. Even if you can find the temperature right at the beginning, it is not so easy to control the ground fire to stabilize at the same temperature without changing the temperature of the Dan furnace!

After all... When the temperature of the Dan furnace reaches a certain level, it doesn't mean that you can keep the flame at this level... If you continue to maintain the existing flame temperature, it will only make the temperature in the Dan furnace continue to rise! Therefore, after the temperature reaches the standard, it is necessary to slowly reduce the temperature of the flame!

However, the temperature of the flame cannot drop too fast. Once the flame temperature drops too fast, the temperature in the Dan furnace may also be reduced too much, which will also affect the purification effect of medicinal materials. How else to say... Alchemists above alchemy master can't completely purify the effective components in the medicinal materials. They must add 30% more to the materials of a furnace of pills!

However, Lushan's control of the flame can be said to have really reached the level of arm and finger. Although he doesn't use his own true yuan fire, he can perfectly control the fire generated by the void only by virtue of his affinity and understanding of fire attribute elements!

And let the void flame burn completely according to his will, which is much more obedient than the true yuan fire, and he doesn't need to consume his own true yuan. Let alone the low-level pill that doesn't take too long to refine. Even if it's the pill that needs to be refined for several days and nights to succeed, he can completely avoid the ground fire, Just use the move of generating fire in the void!

Of course, the premise is that there must be sufficient and continuous supply of heaven and earth aura around his alchemy environment!

After all, even in this strange world, the law of conservation of energy still needs to be observed. Even if he can create the effect of generating flame in the void by means of magic, the continuous combustion of the flame must consume energy!

These energies are not provided by Lushan's own true yuan, so it can only automatically absorb the aura of the surrounding heaven and earth! If he is in a place with poor aura, his empty flame can't play at all!

Of course, if he needs to maintain the void flame for a long time in the place where the spirit is exhausted, he can also put in the spirit stone to consume it by himself. Although the spirit stone will not emit aura without array extraction... Even if it does, it is a very slow process, but... Lushan can let the flame burn the spirit stone directly, so that he can continuously extract energy from the spirit stone according to his wishes.

But now, the place where the alchemy hall is located is naturally quite rich in aura, and... Lushan is now used to refine first-class elixir. The flame does not need to be too strong, and the aura consumed is not much. The free aura around is enough to support it.

When he felt that the temperature in the Dan stove was completely stable and there was no more fluctuation, Lushan gently pinched the formula... Then he saw the animal head carved on the top of the Ding cover of the Dan stove suddenly open his mouth, and at the same time... Lushan thought and a breeze blew, and he had already lifted up six and a half herbs named dongqianzi on the table beside him, It flew into the mouth of the beast head and fell into the Dan furnace.

"Brush -"

After those dongqianzi fell into the Dante stove, the animal head on the Dante stove automatically closed his mouth, and no more heat would overflow. Then, after a few moments, he saw another animal head carved on the other end of the tripod cover, opening his mouth in the same way... "Poof", spewing out a black smoke!

It was so clear that the six half of the East son was extracted from its essence, and the remaining impurity residue was moved out of the Dan stove in this way.

Then... I saw that the color of the flame under the Dan stove changed slightly, the blue gradually became deeper, and the beads on the Dan stove also had four beads and seven, which had originally lit, and became five beads and three.

Then the beast's head in front of the Dan stove opened again. At the same time, there was a breeze, holding up seven biyou grasses, flew over and threw them into the beast's mouth

In this way, Lushan carefully purified a variety of different medicinal materials with flames at different temperatures. The process was neither fast nor slow. It was as rigid as an old clock.

However, in a moment, he purified all the twelve herbs needed for the Qingxin pill, and then began to enter the next link... Fusion!

According to the records of Dan Dian, every mature prescription is thoroughly tempered, and when each kind of medicine is put into operation and how to quench the essence, it has strict and accurate mode. Of course... If you want to achieve the effect in the Dan code, you must pinch the temperature and time of the flame accurately, without any deviation. Otherwise, it will be the consequence of losing thousands of miles!

As long as the purification of each medicinal material is perfect, it can just get the best fusion ratio of the essence of various kinds of medicine in danfang. This is quite critical