In half a year, Yu Xiao refined a total of twenty-four furnaces of Qi Extraction Pills, and obtained two hundred and fifty-one finished pills, of which half of the pills were slightly inferior in quality, and the rest had already caught up with the quality of the Qi Extraction Pills sold on the market.

In general, the process of learning alchemy was quite smooth, of course, this was only for the Qi Drawing Pill, if he changed the Dan prescription, he might have to go through the old path again.

Fortunately, it is not a difficult thing here, with the Cloud Immortal Mansion as a strong backing, he can still afford to consume.

In the past two years, more than half of the water in the spiritual spring has been accumulated, and when it was ripening and drawing spiritual grass, it was basically not consumed.

After all, the Spirit Extraction Grass that can be used to refine the elixir only needs to reach two to three years, and it is often a small half drop.

In this way, the consumption of ripening a stubble of spiritual grass is equivalent to that of ripening an ordinary elixir to about two hundred years, plus the recovery of the spiritual spring itself, there is no obvious consumption in half a year, but there is more.

I don't know if it's an illusion, he feels that Lingquan's recovery speed is a little faster than before, and he doesn't know what caused it yet, but it's a good thing for him anyway.

Because his consumption of the pill has now reached an astonishing level.

After breaking through the fifth layer of Qi refining, he was now refining the Qi Extraction Pill a little faster.

Usually, you need to consume about three to four grains a day, and a hundred grains a month, which is equivalent to a hundred spirit stones.

Ordinary registered disciples may not earn more than a hundred spirit stones a year, but now he needs to consume so much in a month, which is already very exaggerated.

On average, he would have to refine ten furnaces of Qi Extraction Pill in a month, and one stubble of Spirit Cultivation Grass could only sustain two months of cultivation.

It is no wonder that the disciples of the Qi Refining Period will continue to replace more advanced pills as their cultivation increases.

If you have been cultivating with low-grade pills, this consumption rate is a bit scary.

If he hadn't learned alchemy to be self-sufficient, I'm afraid he would have to find a way to get spirit stones now.

Of the 1,575 spirit stones he had accumulated two years ago, there were still 850 left, excluding some of the consumption.

That part of the consumption was basically spent on buying pills, otherwise his cultivation speed would not be so fast.

Calculated from breaking through the third layer of qi refining to the present, it only took him more than three years to cultivate to the fifth layer of qi refining, which has surpassed most of the registered disciples of Luoxia Peak.

Basically, there won't be any big bottlenecks in the Qi refining period, at most, he needs to polish his mana, and at his speed, he is not far from being promoted to a disciple.

Time flies, and it's half a year.

On this day, Yu Xiao was alchemy in the cave.

With one hand, he used the secret of ignition to shoot flames into the Dan furnace, and with the other hand, he unhurriedly threw a few spirit grass into it, skillfully controlling the flames and smelting the spirit grass.

This method of alchemy uses human fire, and it is a great test of the monk's mana and manipulation.

Of course, there are also those who use earth fire to alchemy, compared with the two, each has its own advantages and disadvantages, Yu Xiao's way will not be restricted by any situation, and it can be alchemy anytime and anywhere.

In terms of process, refining any pill can be divided into two stages, one is the smelting stage, and the other is the condensing stage.

As the name suggests, the smelting stage requires refining the essence of the spirit grass and turning it into spiritual liquid, and this stage is often the easiest to fail.

Because each monk's control of the fire initiation technique is different, and it is also affected by the proficiency, the temperature and heat of the flame will directly determine the success of the smelting stage.

If the flame temperature is low, it will be difficult to refine the essence of the spirit grass, and once the temperature is too high, even just a little, it will cause the loss of the essence of the spirit grass, or even directly turn into a pile of carbon slag.

In addition, the monk also had to adjust the temperature of the flame from time to time according to the degree of smelting of the spirit grass, which required a certain amount of experience and accurate judgment, both of which were indispensable.

Therefore, the biggest advantage of human fire alchemy is that the monk can accurately control the flames, which is very advantageous in the smelting stage.

After successfully completing the smelting stage, the next step will be to enter the Ning Dan stage.

The essence of the spiritual liquid extracted from the spirit grass needs to be fused into a ball at high temperature, and condensed into a pill embryo, and gradually tends to become a pill in the subsequent process, so that a pill is refined.

This process requires a steady flame, and this is where earth fire comes in.

Judging the quality of the pill, in fact, it is not a difficult matter, just look at whether the peel of the pill is round, whether the color of the pill is calm, and whether there is a peculiar smell.

Yu Xiao is now ready to refine the Qi Extraction Pill, and has easily completed the smelting and condensing process.

After a while, the eleven grains were full, the color was round, and the Qi Extraction Pill that exuded a faint medicinal fragrance was suspended in the Dan furnace, and he stretched out his hand and made a move, and the pill fell into the porcelain bottle prepared in advance.

"Huh, this is already the ninth furnace, refining one more furnace, and you can cultivate with peace of mind in the next month." Looking at the two vials in front of him, Yu Xiao's eyes flashed with joy.

At this time, it was already late at night, and the white moonlight shone on him along the skylight of the cave.

At this time in the past, he would fill the cave with a container filled with clear water, and then cultivate the "Seventy-two Chapters of Taiyin".

However, he hasn't cultivated anymore in the recent period.

The reason is very simple, because the first layer of "The Seventy-two Chapters of Taiyin" has been completed, and he has also understood most of the content of the second layer.

Right now, just placing some containers full of clear water was no longer enough to meet the needs of cultivation, and he needed more water.

Thinking of this, he stood up and walked out of the cave, twisted the method of soaring clouds, and went straight to the west side of the Night King Peak.

In the dense forest ahead, there was a sparkling land, where there was a small natural lake, which was an excellent place to practice the "Seventy-two Chapters of Taiyin".

took out the array plate, placed the five-pole small flag around, and activated the enchantment, Yu Xiao entered the lake and sat cross-legged on the surface of the lake.

After more than two years of cultivation, the water in his body continued to grow, and now it was the size of a fist, shaped like a drop of water in the sea of qi.

The shape of the water droplets is perfect, there is no superfluous trace, like a finely carved jade, which is a sign of the first layer of perfection.

Before this, this water bloom was completely dispersed, and it took Yu Xiao a long time to condense them into a ball, and it took a long time to polish it into the shape of a water droplet.

The first layer of "Taiyin Seventy-two Chapters" alone took three years before and after.

This is also the reason why most of the registered disciples in the sect will not pursue any advanced exercises when their cultivation is shallow, because it is really a waste of time.

Yu Xiao has already embarked on this road, so naturally there is no possibility of giving up halfway.

Moreover, the more he cultivated in the future, the more he could appreciate the subtlety and profundity of this exercise, and he didn't know what would happen after he finally cultivated to the twelfth level of perfection.