After sitting for most of the day, I realized that my mental and physical strength were all in the best condition, and then I opened my eyes and stood up, ready to start alchemy.

Lu Xu took out a Danding that he had purchased for thirty spirit stones in advance from the storage bag, and cast a hanging spell on it, making it stop directly above Yuandun out of thin air. This spell was also cultivated by Lu Xu in the Medicine Garden every day for today's matter, and it took a lot of time.

After doing all this, Lu Xu once again shot a red light into the beast's mouth, and released the red earth fire in the beast's mouth.

Because the raw materials had not yet been put into the ding, Lu Xu controlled the earth fire and made it very small, only as thick as a silk thread. Then let Xiao Ding start to rotate slowly out of thin air under the preheating of the four lines of fire. For this reason, Lu Xu deliberately put the spirit stone in front of him for backup, for fear that his mana would be exhausted, after all, he only had the cultivation of the first layer of the Qi refining period.

After about a quarter of an hour, Danding was slowly heating up, exuding an astonishing heat.

Seeing this, Lu Xu pointed at Xiaoding, and as a result, Xiaoding's lid immediately flew up, revealing the mouth of the Ding. With a tapped storage bag in his right hand, a white jade bottle appeared in his hand, containing a precise amount of elixir powder prepared. Lu Xu deliberately chose a three-thousand-year-old elixir, and carefully ground it in advance, and one bottle was the amount of an elixir needed for a pill.

Controlling the vial, Lu Xu poured all the medicinal powder in the bottle into the Danding, then immediately threw the bottle, took out another bottle from the storage bag, and continued to repeat the same action.

In this way, Lu Xu poured all the more than ten kinds of elixir powder he needed into the Danding, and finally closed the lid again. The first step was finally completed, and it seemed perfect and nothing went wrong.

The earth fire spewed out from the beast's mouth changed from thin to thick under Lu Xu's manipulation, while the speed of Danding's rotation gradually slowed down, and began to tremble slightly in the flames.

As time passed, Xiao Ding emitted a hint of medicinal fragrance, which made people feel refreshed. But Lu Xu knew that it was still very early to become a pill at this time, and at the very least, he had to use a more violent earth fire to carry out instantaneous condensation, so that it would be possible to form a pill.

Thinking of this, Lu Xu held a spirit stone in his hand, and controlled the earth fire to become more and more dazzling, even reaching the point where the mouth of the bowl was thick, enveloping the entire Danding in it. From a distance, Xiao Ding has become a huge fireball, and the fragrance of medicine is getting stronger and stronger.

There is no need to guess that Lu Xu also knows that this is the beginning of the pill condensation, so he is more and more cautious, for fear that something will go wrong.

But things are often more afraid of something, the more something comes, at this moment, a muffled popping sound came from Dingzhong, although the sound was not loud, but it made Lu Xu's heart sink, and his face suddenly became a little difficult to see.

After hesitating for a moment, Lu Xu sighed slightly and stopped the fire. Then with a move of his hand, he opened the lid of Xiao Ding, which was still hot, and stretched out his head to take a look.

There are several pieces of black solid that have been shattered apart, which seems to be the waste pill that has not been completed!

Shaking his head, Han Li took out a wooden box and placed it on the ground, then controlled the Dan Ding to flip over and pour the waste pills into the wooden box. Prepare to go out and destroy it, after all, the elixir used is more than 3,000 years old, maybe someone can see something from the waste pill, then it will be troublesome.

After doing all this, Lu Xu returned to the futon to meditate and recover the consumed mana, until the Danding completely cooled down. before starting alchemy again.

The same steps, the same raw powder. The same fire control technique, but unfortunately, this time it still failed in the step of Ning Dan.

This time, Han Li's face was expressionless, and after his state was adjusted, he silently started the next round......

......

In the blink of an eye, a month had passed, and Lu Xu had not taken a step out of the alchemy room.

In the alchemy room, Lu Xu sat on the futon, looking at the more than fifty cyan solid spirit pills in front of him, with a look of excitement on his face.

These solid elixirs are all the gains that Lu Xu has poured countless efforts into in the past month. It's really hard to get them, it's comparable to learning from the West!

In the first hundreds of refining, Lu Xu couldn't even pass the level of Ning Dan, and he had a headache when he looked at the waste pill again and again. I almost gave up, and I planned to be a furnace disciple for a few more months after I went back, and then come back to refine the pill. Although this delay will definitely be extremely long, I will miss this Xiaobi.

But when he was about to give up, his mind moved, and he gritted his teeth and wanted to simply use up all the elixirs he brought, anyway, there were elixirs. And this time, perhaps because of the lack of desire in his heart, the Ning Dan succeeded, and what made him even more excited was that the process of opening the furnace miraculously succeeded once, allowing him to get the first solid spirit pill refined by himself.

This solid elixir, although it is a little irregular in shape, finally looks like it, which makes Lu Xu's spirit very uplifted!

With this encouragement, Lu Xu gritted his teeth, maintained a state of no desire and no desire, calmed down and continued refining.

Not to mention, after this successful experience, Lu Xu's chance of condensing pills behind him immediately soared, and one out of ten refining pills was successful. And then there is one success in eight, one success in five, and one success in three.

During this period, when Lu Xu felt that hunger and thirst began to arise in his abdomen, he took a pill of Bigu Pill, and when his mana was insufficient, he supplemented it with spirit stones.

In this way, when the raw materials in Lu Xu's hands were exhausted, he got more than fifty solid spirit pills.

When he heard about the difficulty of alchemy, he didn't have great expectations for this alchemy, so he regarded it as accumulating experience. I didn't expect it to be successful, could it be that his spiritual root qualification is not good, but he has alchemy talent.

In fact, this is Lu Xu thinking a lot, alchemy is actually three points more difficult than the outside world praises. An ordinary-level alchemist cannot be cultivated without twenty or thirty years of time and spending an almost astronomical fortune.

And Lu Xu's refining level in the Guling Pill is now ranked in the upper reaches of ordinary alchemists. The reason why such an incredible thing happened was all due to Lu Xu's uninterrupted refining of the same pill for nearly a month, and the refining was on the pill of the Qi refining period.

You must know that even if a sect with a lot of money is, it is impossible for any alchemist to have enough Zhenxi materials to refine the same pill at all times, and it lasts for a month. As far as the elixir that Lu Xu spent on non-stop alchemy for this month, its value may be able to hollow out a small sect.

This kind of thing, unless it happens to the lowest-level Qi refining stage pill, there is still a bit of possibility! However, if it is the lowest-level pill, then why should it be necessary to cultivate and accumulate experience, anyway, the raw materials are not expensive, and if the refining is broken, it will be necessary to start all over again.

Although the Gu Ling Pill is a Qi Refining Stage Pill, its medicinal properties are the most advanced of the Qi Refining Period Pills, and the elixirs used are extremely precious for thousands of years. Throughout the ages, I am afraid that no monk can think of alchemy as costless as Lu Xu.

Lu Xu didn't understand this, so he naturally didn't figure it out, but after thinking about it a little, he didn't think about it anymore. Because the most urgent thing for him now is to use these solid elixirs to improve his cultivation, and when this batch of elixirs is used up, he will refine a new batch, anyway, there are many elixirs.

After Lu Xu erased all traces of the elixir in the pill room, he played a trick on the jade card and walked out of the alchemy room that had been closed for a month.

In the hut of the Surabaya Medicine Garden, Lu Xu was sitting on a futon, and he was stunned with a cyan pill twisted in his two fingers.

This pill is cyan and oval-shaped, and it doesn't seem to be very rounded in shape, and its surface exudes a strong medicinal fragrance, which makes people feel shocked when they smell it.

"It seems that the Solid Spirit Pill I refined this time doesn't seem to be very pure. After a while, Lu Xu came back to his senses and muttered to himself.

In the world of cultivating immortals, all the pills can be divided into inferior, ordinary and high-grade pills according to the degree of purity of the pills.

Every elixir that is refined inevitably contains some impurities that are not beneficial to the user, and can be easily identified by various means.

Among them, the inferior pill is more than half of the harmful impurities in the pill. Pills with a purity of less than half, ordinary pills are pills with a purity of between 50% and 70%, and imported pills are pills with a purity of more than 70%. Among them, seventy to eighty percent can be called mortal pills, eighty to ninety percent can be called earth pills, and more than ninety percent of the purity is the rumored heavenly pills.

And once the pill is in the product. Spirit patterns can be born on the surface of the elixir, and the more spirit patterns, the higher the grade. And these spirit patterns are also called Dan patterns. Therefore, even if you are not an alchemist, you can simply distinguish the grade of the incoming pill by the number of pills.

Generally speaking, if there are three or less Dan lines on the pill, it is a mortal product, three or more than six Dan lines are earth products, and more than six are naturally heavenly pills.

And once the pill is incorporated, no matter the value and the price itself, it cannot be compared with ordinary pills at all. After all, the higher the purity of the elixir, no matter the effect and the resistance it brings, it is far from being comparable to the latter.

Even some pills with special effects may be a difference in purity, or even half of the difference, which may make a world of difference in the effect of taking it. What's more, the grade pill is more conducive to breaking through the bottleneck, which makes the value of the grade pill even more valuable.

In the world of cultivating immortals, only alchemists who can refine and exit the pills can be called true alchemy masters. And due to the scarcity of alchemy masters and grade pills, those pills with a purity of nearly seventy percent are called high-quality pills.

The elixir is divided into low-grade elixir, medium-grade elixir, and high-grade elixir according to the different materials of the elixir used. Generally speaking, the higher the year, the higher the level of the elixir, the higher the level of the elixir refined, and the better the medicinal properties it contains.

Taking a low-grade pill and taking a high-grade pill had a very different effect on the monks. A low-grade pill might provide several times the usual cultivation speed, but a pill of a high-grade pill might increase by more than ten times or even dozens of times.

And the solid spirit pill refined by Lu Xu this time can only be regarded as inferior in terms of the purity of the elixir, but it can be regarded as the best high-grade elixir in terms of grade.

Then there is a problem here, although taking too many low-grade pills can speed up the speed of cultivation, it will lead to too many mana impurities in the body and an unstable foundation.

As we all know, one of the most critical factors for a cultivator in the Qi refining period to build a foundation is to require a solid foundation and pure mana.

For a while, Lu Xu was in a dilemma.