In the past few days, Lin Chen spent more time practicing fire control techniques, and also took the time to browse the Danjing in general.

The methods and techniques of alchemy are introduced in the Dan Sutra, but for Lin Chen now, he still doesn't know anything about alchemy, not to mention mastering those alchemy techniques, and he can't even understand them.

The first step in alchemy is the control of the heat.

Fire control is extremely important to alchemy, and poor fire control will not only affect the quality of the elixir, but may even directly lead to the failure of alchemy.

Therefore, fire control is also the most critical step.

The control of the fire depends on two aspects, the first is the alchemist's own control of the true fire, and the second is the alchemy furnace formation's control of the flame.

Therefore, while learning fire control techniques, Lin Chen also had to master the skillful control of the Dan furnace, mainly the control of the formation on the Dan furnace, this part is simple, as long as he grasps the timing and uses the true qi to inject into the Dan furnace to activate the formation.

Fire control, on the other hand, is the practice of one's proficiency in the control of real fire, which has no skill to speak of, but is affected by talent.

These are also the most basic, after mastering them, you must start to learn the theory of alchemy, as well as the practical operation.

On the other hand, the achievements that can be achieved by alchemy will also be affected by the realm of monks, but the decisive factor is talent.

In fact, it is not difficult to practice fire control alone, what is difficult is to accurately apply fire control to alchemy, and the most important thing is to control the timing.

When and what kind of temperature is needed, the first step of alchemy is to remove the impurities in the material, and if the temperature is too high at the beginning, the material will be directly incinerated into ashes.

If the temperature is too low, the impurities in the material will not be cleanly removed, which will reduce the quality of the pill, and may even become a waste pill.

The so-called waste pill is that it contains too many impurities to be absorbed by the monks, and this kind of pill, there is also a saying, it is a poisonous pill.

Lin Chen mainly practiced fire control techniques with reference to fire control techniques, and two days later, Lin Chen came to the alchemy room again, and Sun Zhengyang asked Lin Chen to show the results of the two days of practice.

Lin Chen skillfully operated, and Sun Zhengyang, who was watching, also nodded, obviously quite satisfied.

The operation was as fierce as a tiger, and then he waited for Sun Zhengyang's praise, because according to Luo Yu, it took him half a month to achieve this effect when he practiced fire control techniques, and it only took him two days.

Praise me, Lin Chen looked at Sun Zhengyang a little proudly.

Unexpectedly, Sun Zhengyang pointed to the alchemy furnace on the side: "Continue to practice." ”

Lin Chen was stunned for a moment, if you don't praise it, don't praise it, but what does it mean to give me a stove to continue practicing.

Sun Zhengyang said: "You have only mastered the simplest fire control technique now, but there is still a distance from the requirements of alchemy, with the assistance of the alchemy furnace, practicing fire control will have the effect of getting twice the result with half the effort, and during the alchemy period, if you want to achieve the best effect, the fire control technique must cooperate with the alchemy furnace formation." ”

This Ding alchemy furnace was specially prepared by Sun Zhengyang for Lin Chen to practice alchemy.

Okay, what Sun Zhengyang said, Lin Chen could only do it, and the real fire was put into the alchemy furnace, and the formation of the alchemy furnace was also activated.

"It's bigger, it's smaller."

Sun Zhengyang commanded on the side: "At the beginning, the temperature should not be too high, otherwise it will burn the alchemy materials, and then slowly increase the heat to achieve the temperature to adapt, different materials have different requirements for the heat, so it is necessary to control the heat according to the properties of the material, in addition, the demand for fire at each stage during the alchemy period is also different, and you will slowly become familiar with it when you are alchemy in the future, now you only need to practice the control of the fire, and the proficiency of the fire control is related to the success rate and quality of the alchemy." ”

Lin Chen had no choice but to continue practicing according to Sun Zhengyang's request.

Three days later, Lin Chen began his first attempt at alchemy.

Qi Gathering Pill, which is a low-grade pill, is also one of the easiest pills to refine, and the materials used are also low-grade materials.

After the materials were ready, the first alchemy attempt began.

To be honest, Lin Chen's heart was still a little excited, after practicing fire control for five days, he could finally try alchemy.

Lin Chen went through the refining method of the Qi Gathering Pill in his mind again, and then checked the materials again, and after making sure that it was correct, he took a deep breath, put the true fire into the alchemy furnace, and the formation was activated, and after controlling the fire to a certain extent, he began to put materials into the alchemy furnace in turn.

It was smooth at first, but it didn't take long for it to boom, and a puff of black smoke came out of the alchemy furnace, and when I looked at it again, the materials were all turned to ashes.

Failed!

Lin Chen didn't expect to fail so quickly, he originally thought that he was already very proficient in controlling the heat and refining the simplest pill should have a high success rate, but he didn't expect to fail so quickly.

"I'm so anxious." Sun Zhengyang said: "Don't be anxious when alchemy, let alone be anxious, the slightest carelessness will lead to the failure of alchemy, and come again." ”

Lin Chen took a deep breath and started a second attempt, this time holding on a little longer than the last time, but in the end he failed.

Sun Zhengyang smiled and said, "What a stinky boy." ”

Lin Chen was a little embarrassed, he failed twice in a row, this is too embarrassing, he is a genius.

"The old man will show you a demonstration, look at it."

Sun Zhengyang threw the real fire into the alchemy furnace, and then began to put materials into the alchemy furnace, the action was like flowing water, he was extremely skilled, and the speed of putting materials was faster than Lin Chen.

Lin Chen looked at it carefully, why didn't this old guy fail when he invested the materials so quickly?

"When alchemy, you can't divide it into two parts, alchemy is not only the control of the fire, but also the application of spiritual power, you must concentrate on observing the material, and you can't be distracted, so that you can adjust the size of the fire according to the reaction of the material,..."

Sun Zhengyang explained to Lin Chen while alchemy.

Lin Chen listened very carefully, this is all experience, and the most lacking thing for novices is experience.

However, Sun Zhengyang said that he couldn't be half-hearted, but he was talking while alchemy, isn't this half-hearted?

However, for a medicine king, refining this simplest pill is completely easy, and there is no need to invest too much energy at all.

It didn't take long for the elixir to come out, and a smell of medicine wafted out.

And that's it!

Lin Chen looked at the pill in Sun Zhengyang's hand in surprise.

Sun Zhengyang handed the pill to Lin Chen and said, "Observe this pill." ”

Lin Chen took it, he understood what Sun Zhengyang asked him to observe, the quality of the same elixir is also good or bad, divided into: lower grade, middle grade, upper grade and perfect four grades.

The higher the quality, the better the effect of the elixir.

Although Lin Chen said that alchemy was not even an entry, he still knew the most basic things.

But Lin Chen observed for a long time and didn't see what grade this pill had reached.

The quality of the elixir is generally distinguished from several aspects: the medicinal fragrance, the medicinal fragrance of different grades of the elixir is not the same, but the quality of the same elixir will be different from the medicinal fragrance, the medicinal fragrance will be obvious when it is just baked, but the medicinal fragrance will not be obvious after a long time, in addition to the medicinal fragrance, it can also be distinguished from the color and roundness, and some high-quality elixirs will also have halos and so on.

But it's easy to say, it's not so simple to really distinguish it, generally like auction firms, there are special treasure connoisseurs to identify the quality of the elixir.