The reason why alchemy is difficult is because of the control of the fire temperature.

When firewood is used as a fire source, the temperature of the flame is difficult to control, let alone achieve a precise degree. Theoretically, the higher the level of the elixir, the more demanding the control of the flames.

Not only must it be accurate, but it also has to make the temperature reach a certain extreme, which will also have high requirements for the realm of Danshi. Generally speaking, a Dan Master could refine an elixir one level higher than his own realm.

For example, Ling Han is in the Body Refining Realm, then he can refine the highest yellow-level mid-grade elixir.

However, alchemy must first be able to control fire, and there are certain requirements for fire temperature, so if the realm is too low, it is not good, how can you refine the seventh layer of the body. Like Ling Han dared to start alchemy at the fourth layer of body refining, it was because of his spiritual root.

With the Five Elements Chaos Lotus, the Yuan Force in his body can be transformed into any of the metal, wood, water, fire, and earth, and the temperature of the flame is not high, at most four hundred degrees, but it is enough to refine the Xiaoyun Water Pill.

"It is worthy of the Five Elements Chaos Lotus, the five elements rotate each other, and the wonder is endless!" Ling Han praised in his heart, the ordinary fire spirit root released a maximum of about two hundred degrees of flames in the fourth layer of the refining body, that is, he had a pure fire spirit root in his previous life, but at most it was just the same.

However, the Five Elements Chaos Lotus can transform in any way among the five elemental powers, which is something that the Nine Yang Fire Spirit Root cannot match.

It is worthy of a god-level spiritual root!

Ling Han's left hand was constantly rotating, so that every part of the Dan Furnace could be subjected to flames, and each part was different - if you want to refine high-grade Dan Medicine in the future, you will also have extremely high requirements for the Dan Furnace, such as fire permeability and fire resistance, a good Dan Furnace will be snatched by the Dan Master!

From time to time, he would throw a medicinal herb into the Dan furnace, sometimes opening the lid and sometimes closing it, which made people dazzled.

Liu Yutong on the side was already wide-eyed and couldn't speak.

Fortunately, she was not a Dan Master and did not know much about this profession, otherwise she would definitely be even more surprised if she knew that the minimum requirement for alchemy was the seventh level of body refining.

Then again, she's been surprised enough by now that a few more blows might make her faint.

The higher the temperature of this flame, the greater the consumption of Yuan Force, Ling Han quickly felt exhausted, and hurriedly threw a Hui Yuan Pill into his mouth, Kaka chewed and swallowed it, and immediately felt a trace of Yuan Force pouring into his body, allowing him to continue.

Time passed slowly, Ling Han kept snorting back to Yuan Dan, and two hours later, Ling Han roared violently, biting his tongue, a stream of blood gushed out, and the lone wolf blood was launched, his Yuan Power suddenly skyrocketed, and the temperature of the flame also soared to about six hundred degrees.

"Cheng Dan!" he slammed the flame away, and the final flame surge was the finishing touch, increasing the effect of the pill by about half a percent.

It's just that 400 degrees of flame is his limit, and he can only self-harm to stimulate the blood of the lone wolf, bursting out of the high temperature of 600 degrees.

He opened the lid of the stove, and a faint smell of medicine suddenly came to his nose.

Liu Yutong couldn't help but lean over and looked towards the furnace, only to see that there were seventeen round vermilion pills inside, the surface was crystal bright, and it looked tempting. Even if she didn't understand alchemy at all, she could be sure that Ling Han's alchemy was successful.

"You're such a freak!" she said, her eyes strange.

Ling Han laughed and said, "I will slowly get used to it in the future." ”

Liu Yutong really didn't know if she would go crazy or become numb under such a continuous miracle impact.

Ling Han picked up a small Yunshui Pill, swallowed it in one gulp, and immediately began to cultivate.

Boom, Xiaoyun Water Pill is like lime, and the aura of heaven and earth is water, the encounter between the two immediately triggered a violent reaction, the terrifying aura attacked, and the Five Elements Chaos Lotus gently moved in the dantian, and the comer did not refuse, absorbing it at a terrifying speed.

This kind of strength can only be withstood by a god-level spiritual root, Ling Han said in his heart, but on the other hand, he was running the Five Elements Heavenly Extreme Skill, transforming the spiritual energy into his own yuan power, filling the limbs and veins.

An hour later, the medicinal power of the first Xiaoyun Water Pill was exhausted, and Ling Han swallowed the second one and continued to cultivate.

However, when the medicinal power of the third Xiaoyun Water Pill was also exhausted, Ling Han's endurance also reached the limit, and he only felt drowsy, so he directly fell down and fell asleep on the ground.

Liu Yutong had been watching from the side, couldn't help but shake his head, and after helping Ling Han to the bed, he carefully dragged off his shoes and covered the quilt, and then exited the inner room, and dozed off on the chair in the outhouse.

She was very loyal to her identity as a follower, guarding Ling Han's safety.

One night passed, Ling Han opened his eyes, but what he saw was the top of the tent, which made him slightly surprised, because he didn't remember that he had climbed into bed last night.

But it doesn't matter.

He showed a smile, just last night, his cultivation soared again, breaking through to the fifth layer of body refining.

Yesterday, I was able to break through two realms in a row, it was because the cultivation speed of this body was too slow before, and the Five Elements Chaos Lotus would naturally usher in an explosion when it was at full power for the first time, and of course it would not be possible to have it again in the future.

"You, you've broken through again!" When Ling Han walked out of the back room, Liu Yutong suddenly looked like he had seen a ghost, his speech was incoherent, and his eyes were straight.

"It's just the Body Refining Realm, it's normal to be so fast. Ling Han said very blandly.

What a normal ghost!

Liu Yutong was about to go crazy, she was also a heaven-level spiritual root, after embarking on the path of cultivation, it took ten days to break through to the second layer of body refining, and from the fourth layer to the fifth layer of body refining, it was twenty-five days.

Twenty-five days, one night, how can this compare?

"Are you going to break through the sixth layer of refining tomorrow?" Liu Yutong suddenly asked.

Ling Han thought for a moment, shook his head and said, "No." ”

Liu Yutong breathed a sigh of relief, otherwise she would really go crazy.

"It should be okay the day after tomorrow. After a pause, Ling Han said again.

Youkai!

Liu Yutong looked at him with complaining eyes, and said in his heart that he would never guess the speed of this guy's cultivation in the future, anyway, just treat him as a monster, no matter how fast he is, there is no need to be strange.

Ling Han laughed, and after breakfast, he began to cultivate behind closed doors again.

However, a person's spirit is limited, and it is impossible for him to cultivate all day long, so even if he starts cultivating during the day, he can't actually increase his speed much. But every second counts now, even if it's a little bit faster.

On the other hand, Liu Yutong's entry was also very fast, with the help of heaven-level exercises, she could reach the peak of the ninth layer of Juyuan in two months at most, such a speed made her unbelievable.