Back in the alchemy room, a stone pot was brought out, and a shelf with an iron plate at the bottom was attached underneath, to which a portion of charcoal was added.

Toyoko snapped her fingers with her right hand, and a cluster of flames was formed out of thin air, thrown into the pile of charcoal, and then began to burn.

As the temperature rises, the green mud is bubbling and the ventilation in the house is also turned on in advance, and the white smoke is swept by the wind like a white ribbon connecting the stone pot and the vent on the top.

"Now what I want to teach you is the detailed steps of refining the Raw Blood Pill, my unique pill recipe is hard to find outside, and now I have picked it up cheaply for your kid, but I am optimistic about it." ”

The firelight was imprinted on Feng Zizhen's face, and he said with a serious face, and a calm aura spontaneously appeared, as if when it came to alchemy, he inexplicably produced a master's demeanor.

The residual liquid in the stone cauldron was rapidly evaporated, but Toyoko really didn't seem to think that this speed was fast enough, and he pointed to the charcoal underneath, and suddenly the fire under the bottom was great, and the charcoal piled up on the plate also accelerated its own loss.

"Add charcoal!" Feng Zi Zhen stared at the boiling liquid in the stone cauldron with two eyes, and suddenly said these two words.

Du Rong is also clever here, before he saw that a lot of charcoal had been consumed in the plate, he had already taken the charcoal in advance, and just waited for an order to put the charcoal in his hand into the iron plate that was still burning.

In the "crackling" sound of wood crackling, the grass and mud in the stone pot had shrunk significantly, and the liquid surface on the top no longer bubbled, condensed into a fist-sized lump of gelatinous substance.

Feng Zizhen's eyes kept staring at the changes in the stone cauldron, and seeing that it was almost boiling, he pointed to the hole under the alchemy furnace, only to see that the originally calm hole also came out of a stream of fire, and began to heat the furnace directly above.

It didn't take long for the bronze bottom of the furnace to turn red, and it seemed that the inside was also very hot.

The stone cauldron was lifted by the void, and the gel that had been burned into a lump in the pot was flipped and poured into the mouth of the furnace, and when it reached the bottom of the furnace, it made a "thump" sound. At the same time, Toyoko Shin opened his storage bag, only to see that he took out several other different herbs and dried flowers, which were added to the furnace in different order.

Some of them were squeezed by him and used only their juice, some of them were thrown into the furnace whole, and as for the dried flower-like thing, it was completely turned into powder by rubbing it with both hands.

Once all the ingredients were in the furnace, Toyoko closed the lid of the furnace and began to pay full attention to the size of the fire at the opening.

He saw that the flames coming out of the cave were changing between red, blue and white, and he knew that the color of the flames also represented different temperatures.

And he inexplicably has an indescribable understanding of the changes in this flame, and as Toyoko really operates, he has roughly memorized several key points of flame change in key seasons.

Several exhaust vents in the furnace were also "sizzling" at this time, just like the kind that Du Rong first saw, and a small amount of black dust was also dispersed. Toyoko also focused on two places, one is the size of the firepower, and the other is the gas release from the exhaust port.

After about half an hour, he stopped controlling the fire, wiped a handful of sweat from being around the flames for a long time, and the flames at the entrance of the cave turned their inherent orange-red color after they were out of his control, burning steadily.

Feng Zizhen's refining here was lively, but he didn't notice that everyone on the side was making some small movements.

An invisible magnetic field, derived from Du Rong's head, passed through the concentrated Feng Zizhen, and seeped into it through the outer wall of the thick Dan furnace, and a vision similar to a perspective picture appeared in his mind.

From beginning to end, Du Rong carefully observed Fengzi's movements, and seeing that he didn't react to his actions from beginning to end, he couldn't help but secretly take a long breath, and then looked at the movement in this Dan furnace with peace of mind.

Since these two days, when he had time to practice his magic, he made a new discovery about the elemental wheel in his sea of consciousness. He tried to destroy the endless particles in the middle of the wheel that looked like a galaxy, and he thought that there would be no reaction, but he didn't expect that as long as he thought of it, he would be controlled by him at any time.

It can be detached from the wheel at will, and separated from the body from the sea of consciousness, and any tangible things in the outside world can not block it, and the particles can be clearly imaged in the mind of the touch, even if the hot and cold of the object and the thickness of the outer skin, the size of the details can give him tactile feedback, and will return to its original position on its own after use.

"Spiritual power!" At this time, Du Rong was the first and most correct thing to think of, but he didn't expect that the spiritual power was wrapped in the elemental wheel, and he had never discovered it before.

But at this stage, apart from using it to make himself tireless and infiltrating and observing the outside world, he has not found any other use for the time being, but even so, even today's study of alchemy has been meticulous.

"Now all you have to do is to wait for it to burn for an hour according to the current firepower, can you write down the process?" Feng Zizhen patted his hand, looked at the medicine furnace lightly but with relief, obviously very satisfied with his previous operation, and asked Du Rong casually.

Before, Du Rong had been silently remembering all the key processes of Feng Zizhen, and with the help of his spiritual power, he remembered clearly the reaction that occurred in the furnace and how each different medicinal herb was fused under different firepower.

He couldn't name other auxiliary herbs than the others, so he repeated the process he had just remembered.

However, he also had some doubts, that is, when he was cooking the ingredients, he forgot to use his mental power to observe the specific situation. He also asked Feng Zizhen: "Uncle Feng, how to judge the amount of water that needs to be maintained in the process of boiling the ground withered grass and grass slurry, forgive the disciple for being stupid, he can only see that it is boiled into a gelatinous substance, and the specific details cannot be grasped." ”

In the past, when there were still many disciples in the Alchemy Hall, there were many people, and Feng Zi really kept the pill of this blood pill well to prevent the pill from leaking, and the steps they needed to do were nothing more than two steps: grinding and boiling medicine.

But even so, the previous disciples didn't even do a good job in the step of grinding medicine, and in the step of cooking medicine, they never thought about what should be the best, so many of the blood pills that were refined before were destroyed because of improper refining of raw materials.

The one who raised this question was the first to raise the critical question among all the people who came into contact with the boiling medicine for the first time, Fengzi really couldn't help but be a little impressed by him, in the process of refining the Raw Blood Pill, the most important thing was the humidity control of the medicinal liquid of the boiling medicine itself.

He was actually ready to talk to him about this key point, but he didn't expect him to ask the question first, "Could it be that this son is born with a talent for refining medicine?"

"Yes, you're asking the gist of the process. For the purification control of the grass pulp, it needs to be boiled until the juice is dry, that is, the moment before the residue appears.

At this time, the withered grass mud happens to have some water, which can be infiltrated and coated with subsequent excipients for the next step of fusion alchemy. However, this middle way can be explained clearly in a few words, I just told you the most basic truth, and the rest is still up to you to explore......" Feng Zizhen explained.

One of the two of them here is explaining without bothering, and the other is listening attentively, if the other sect elders see Feng Zizhen's patient mentorship at this time, they will definitely feel incredible.

He himself is known for his impatience and short temper in the White Yang Sect, and he has never accepted an apprentice, all the disciples in the Alchemy Hall are in the form of names, and his current appearance is a bit like a master.

After talking about the precautions in the alchemy with Du Rong, an hour's work passed quickly, and seeing that the time was up, and the furnace was opened on time, Du Rong saw the pill that was the same as when he first came in was baked.

This time there are only six of them, but in terms of color and texture, they seem to be better than the previous ones. He estimated that for refining this pill, he would consume about six withered grasses to produce a Blood Pill, but what he didn't know was that before he came, the amount of withered grass that would be consumed per pill was twice as much as it was now.

After playing with the Blood Pill on his hand for a while, Feng Zizhen was obviously very satisfied with the quality of this time, and even the eyes that looked at Du Rong became more and more friendly.

But then he became solemn again: "Although you look at the comprehension is quite high, but after all, the spiritual root qualification is too poor, for alchemy, although grinding is an important part, but an alchemist who has not yet built a foundation, before generating his own Dan fire, will not control the earth vein flame is a waste of all his previous efforts, although the requirements for controlling the earth fire are very low, but at least you need to have the premise of having the fire spirit root to obtain the cultivation of just practicing qi, and become a real monk." ”