After the identification of the spirit grass came to an end, Cang Mo asked again: "The spirit grass here is free to match, how many kinds of Dan recipes can you name in total?"

One by one, the Dan prescriptions were said by Liu Busy, most of these Dan prescriptions are very popular Dan prescriptions, and you can learn several of them by buying a book of alchemy.

But in general, it's okay, Liu Busy's mastery still exceeds Cang's expectations.

Cang Mang was even a little curious, if the basic skills could be mastered to such an extent, why was the level of alchemy so poor?

Next, it is necessary to let Liu Busy enter the actual operation, and let Liu Busy choose what pill to refine.

Liu Xian didn't choose to refine any pills that were too out of the way, what he chose to refine was the Rejuvenation Pill.

"Okay, then you can get started. ”

Liu hurriedly began to select the spirit grass, and then sat in front of the Dan furnace to inspect the Dan furnace.

When everything was ready, the ground fire switch was turned on, and a ground fire came out from below and began to preheat the Dan furnace.

One by one, the spirit grass was hurriedly thrown into the Dan furnace, the movements were not fancy, there were no complicated techniques, and they looked decent in the vastness, but they were also orderly.

Liu hurriedly turned off the fire and used a special spoon to remove the ointment from the Dan furnace.

And use the most primitive Cheng Dan method to rub out the rejuvenation pill one by one.

The pill is uniform in size and regular and round in shape.

Liu hurriedly put the freshly refined Rejuvenation Pill in front of Cang Mang on a tray: "Senior brother, the pill has been refined. ”

Cang Mang doesn't need to try the pill at all, just from the quality of the pill and the alchemy process of Liu Xian, you can judge that the quality of these rejuvenation pills is not bad.

While nodding slightly, he looked at Liu Xian with some doubts: "I watched you alchemy just now, the technique is okay, and the mastery is also very skillful." Why can't you even refine this simplest pill when you participate in the recruitment examinations of various sects in Green Water City?"

This point really made Cang Mang a little puzzled, whether it was the alchemy technique that Liu Xian had mastered just now, or the degree of his recognition of the spirit grass, there should be no mistakes in the Rejuvenation Pill! Not to mention the successive mistakes.

Liu hurriedly lowered his head, and after a while, he replied, "When I was assessed in Green Water City, I didn't use those Dan furnaces well. ”

Cang Miao didn't expect Liu Busy to say this kind of reason, in his opinion, this is a bit crooked.

Is there such a big gap if the Dan furnace is not smooth? And this Dan furnace that Liu is busy with is not very good!

But Cang Mang didn't rush to question Liu Xian's words, but ordered: "Move your Dan furnace away and use the Dan furnace over there to refine it again." ”

According to Cangmang's instructions, Liu hurriedly replaced the alchemy furnace provided by Cangmang.

It's business as usual, pick the spirit grass, check the Dan furnace......

The fire was turned on again, and the furnace began to preheat.

The first spirit grass was hurriedly thrown into the Dan furnace by Liu.

Smack!

As the temperature of the Dan furnace increased, the spirit grass gradually changed from emerald green at the beginning, to yellow, and then darker and darker.

Cang Man on the side frowned, the heat of this spirit grass was already a little too much.

The second spirit grass was hurriedly put into the Dan furnace by Liu Xian, and as the Dan furnace heated, the heat of the spirit grass was a little too much.

The spirit grass was constantly thrown into the Dan furnace by the willows.

Finally, there was a pop in the Dan furnace, and the whole furnace of herbs burned into black charcoal.

Liu Xian looked at the sky with an ugly face.

Cang Mang shook his head slightly: "Have you concentrated on alchemy? What were you doing just now? The spirit grass is about to burn, haven't you noticed?"

Liu hurriedly lowered his head and did not speak.

Cang Mang waved his hand: "Do it again." ”

Liu hurriedly cleaned up the Dan furnace, and then went to select the spirit grass and inspect the Dan furnace......

Turn on the earth fire switch, and a new round of alchemy has begun.

The first spirit grass was put into the Dan furnace, and the spirit grass had just changed color, far from reaching the best time, and the second spirit grass was put into it.

Cang frowned again, but still did not speak, and still did not give any hints or instructions.

In this alchemy, Liu was busy with all the spirit grasses that were put early, so that in the end, the spirit grass was not heated sufficiently, the medicinal properties were not refined well, and the final thing that came out was still a pile of waste.

Liu Xian's face was still ugly, and he was a little speechless.

The gap between Liu Xian's alchemy level before and after this is too big.

With his own Dan furnace, refining Dan still looks good, as soon as the Dan furnace is changed, this level plummets, and even the minimum heat cannot be controlled.

The blank gaze turned to the Dan furnace that Liu was busy with.

With a move of his hand, a stream of aura dragged this Dan furnace into Cangmang's hands, and Cangmang checked it carefully again, this is an ordinary Dan furnace, there is absolutely nothing wrong with it.

Putting Liu's busy Dan furnace aside, Cang Mang commanded, "Do it again." ”

Clean the Dan furnace, select the spirit grass, inspect the Dan furnace, and turn on the earth fire......

All the steps were done again.

This time, the elixir was barely baked, but overall, the heat was still a little worse.

"Come again. ”

......

Successfully came out of Dan, but overall, the heat was still a little worse.

"Come again. ”

......

Successfully came out of Dan, but this time the heat passed a little later.

After alchemy again and again, Liu Xian was already sweating like rain, and it was difficult to hold on anymore, but he still persisted.

Cang shook his head imperceptibly, he didn't know how to describe Liu busy.

To say that he is not hardworking, not diligent, but he is still insisting on this state.

To say that he has no talent, he made Cang Wan impressed in the process of identifying the spirit grass before.

As Liu Busy continued to refine the pill, Cang Mang finally noticed a detail, which can be said to be a problem for Liu Busy.

Cang Mang noticed that the timing of Liu Busily's release of the spirit grass was so strange.

If the time point of the spiritual grass input is early and the heat is not enough, then all the spiritual grass after that will be invested early, and the heat will not be enough.

If the time invested by the spirit grass is too late, and the heat is too much, then all the time invested by the spirit grass after that will be too late, and the heat will be too much.

There is no situation where this plant is early and the next one is late.

This made Cang Miao wonder how exactly Liu Xian did alchemy? This technique seemed to be carried out in proportion to the timeline.

Find the perfect timeline and adjust it to the pace, just like a robot!

This method may seem simple, but it is actually very cumbersome.

Cang Mang raised his doubts: "Liu Busy, how do you decide when to put the spirit grass?"

Liu Busy's answer was not as Cang Mang expected, it was as Cang Mang imagined, Liu Busy was putting spirit grass in proportion to the timeline.

Cang Mang asked again: "Isn't it troublesome for you to do this? Isn't it simpler and more practical to observe the state of the spirit grass in the Dan furnace to determine the size of the fire and the time to release the spirit grass?"

Liu was busy for a long time, as if he didn't dare to refute Cang's words, but in the end he whispered: "Senior brother, I think it is so difficult to observe the changes in the spirit grass, or it is easier for me to do this." ”

Cang is a little puzzled, things that can be seen at a glance, what is the difficulty of this?