In the blink of an eye, five days passed.

However, Zheng Yuan's accomplishments were only improved by one point.

He couldn't help sighing.

He absorbed a lot of aura these days, but he didn't expect that he didn't add any accomplishments.

In this way, it will take at least one month, or even several months, to get the chance to complete the foundation construction.

Alas, with the increase of cultivation, he needs more and more Aura now.

In fact, in a month, or two or three months, it is very abnormal to be promoted from the ninth floor of the foundation to the completion of the foundation.

Because even if you are a genius, it will take you a year, or even three years, to advance from the ninth floor of Zhuji to perfection.

In the foundation building stage, there are many elixirs for improving accomplishments.

But Zheng Yuan didn't eat it.

Because building foundation is the most critical step to lay a good foundation, we must be down-to-earth.

Only in the case of promotion without the use of elixir, can the foundation be solid and provide guarantee for the future level.

Otherwise, if the foundation period is not stable, even if the talent goes against the heaven, the cultivation in the future will be more difficult.

Generally speaking, if the elixir is used during the foundation period, there is almost no chance to reach the immortal realm in this life. Even it is difficult to take the tripod realm. Most of them just stop at the catastrophe realm.

However, for most of the practitioners, it's very good to be in a state of great calamity in their lifetime.

Therefore, many short-sighted practitioners, in order to cultivate faster, make use of pills at the foundation period.

Zheng Yuan stopped practicing.

Because he knew that it was a waste of time to practice like this.

If you have time, you might as well use it to make pills.

So he got up and went to the alchemy room.

He went to a toilet first, then took out the alchemy stove.

Now he's going to refine the elixir.

In less than ten minutes, he succeeded in refining a batch of golden elixirs.

Man Dan, ten special pills.

Then, he summoned firefly from the chaotic inner space and cut off his upper body, leaving only the root.

Zheng Yuan used firefly ginseng as the main medicine to refine a batch of golden ginseng pills, which are also ten special pills.

Next, he refined the meditation pill, and some level 2 to level 5 pills.

However, it took a long time to refine them.

It only took more than an hour.

Zheng Yuan felt a little tired.

Now the pills below level 6 have no pressure on him at all.

This is true of all people. The easier it is to do something, the less energetic it is, especially for people like Zheng Yuan who like to challenge and take risks.

So, idle boring Zheng Yuan intended to challenge seven Dan.

Although, he knew that with his current ability, it was still a little difficult to refine the seventh level pill.

But that's what makes him very motivated.

As long as he can refine level 7 elixir, he can become a level 7 elixir.

Zheng Yuan didn't think much about it. He took out some seven level spirit grass from the small valley.

Now he's going to make the flying hair pill.

The effect of Feimao pill is that it can speed up the lightness skill of the cultivator. It is the best pill to escape.

Feimao pill is the easiest to refine among the seven level pills.

That's why Zheng Yuan chose to start with it.

First simple, then easy, so that step by step, not to waste spirit grass.

After all, the seven level spirit grass was too precious, and Zheng Yuan didn't have much.

Zheng Yuan threw the material of Feimao pill into Ruyi Zijin furnace, and then began to refine it.

The first is to melt the herb into liquid medicine.

Spirit grass above level 7 is very tough, so if there is no abnormal fire, it can hardly be melted into liquid.

That's why 99.99% of alchemists can't become alchemists above level 7 without abnormal fire.

Of course, some gifted evil genius alchemists, their real fire is as strong as the strange fire, so they can melt the spirit grass above level 7.However, this kind of demon alchemist has only 0.01% chance of appearing.

It took only ten minutes for Zheng Yuan to melt all the medicinal materials of feimaodan into liquid.

The next step is purification.

It is also very difficult to purify lingcao above level 7.

Zheng Yuan carefully left the inner air and stirred the liquid to remove impurities.

No matter what level of lingcao, it can't remove the impurities.

Generally, it can be purified to 80%, which is very good.

It's perfect to be able to reach more than 90%.

Most ordinary alchemists can only increase by 50% at most.

Even if Zheng Yuan had powerful chaotic alchemy, he could only purify 99% of the liquid medicine below level 6.

In the past, he thought it could be purified 100%, but in practice, there was still one point that could not be purified.

Although a little imperfect, but also helpless.

In fact, Zheng Yuan knew that there was a way in the world to improve the liquid medicine 100%, but he had not mastered it yet.

It took about half an hour for Zheng Yuan to purify the medicinal liquid of feimaodan.

But it's only 50 percent.

After purification, the condensate becomes Dan.

A batch of feimaodan can be divided into 12 parts.

But Zheng Yuan knew that he was a little difficult to control the seven level spirit grass, so he only divided it into eight parts, which would increase the chance of becoming a pill.

In the end, however, it only condensed into five Maodan.

After coagulating Dan, he began to quench Dan.

This is also the most critical step.

Whether Maodan can become a real effective Chengdan depends on this step.

Zheng Yuan took a deep breath and began to refine it carefully with a different fire.

Suddenly, just listen to a sound, a Maodan broken open, and finally into black residue, fell to the bottom of the furnace.

It was like a chain reaction. After a while, two more pieces of Maodan broke up and became waste.

Now there are only two Maodan left.

However, Zheng Yuan was not affected at all, and still tempered calmly.

Slowly, slowly, two Maodan become more solid, and began to appear a glimmer of luster.

However, at this time, another Maodan was broken.

Alas, alchemy is just like this. Before the alchemy is really finished, accidents may happen at any time.

Therefore, the difficulty of alchemy can not be understood by ordinary people.

Zheng Yuan is still silent, and continues to refine the last Maodan.

I have to say that his mentality is very strong.

If it's someone else, there will be a lot of psychological pressure at the moment. They can no longer settle down to temper, and there will be a sense of frustration that they can't succeed.

And then affect the level of play, and finally completely failed.