(Cat Flutter Chinese) Next, Lu Nan continued to put the medicinal materials into the tripod step by step, some needed to be calcined over high fire, some were placed on the furnace wall to be slowly heated, and some needed to be slowly roasted...... In short, each has its own exquisiteness, and there can be no mistakes.

Gradually, these medicinal materials were stored in the alchemy furnace in different forms, some into medicinal gas, some into medicinal liquid, and some into medicinal residues......

If it was an ordinary alchemist, it would be absolutely impossible for Lu Nan to successfully condense the medicinal materials so smoothly, because the furnace fire they used was an external fire, the temperature was not easy to control, and the fire could not be mediated anytime and anywhere.

Lu Nan can directly use the power of the fire ghost to attract the Nether Fire, so he can quickly and perfectly adjust the flame to the best state.

In this way, not only does it save a lot of time to adjust the flame, but it also minimizes the volatile loss of the medicinal effect, and the medicinal properties of the refined elixir will be more intact.

Rao is like this, after Lu Nan has condensed all the medicinal materials, a layer of fine beads of sweat has oozed from his forehead.

Next, he mentally controlled the flames to envelop the liquid medicine and the medicinal residue, causing them to slowly fuse.

After the liquid medicine and the residue were evenly fused, the original large mass of liquid medicine had been condensed to the size of a fist.

Then, Lu Nan dispersed the fire, evenly spread it on the inner wall of the Dan furnace, surrounded the medicinal gas, slowly compressed it inward into the medicinal liquid, and then continued to condense the medicinal liquid.

The fist-sized liquid became thicker and thicker, and gradually began to condense into a solid-like state.

By this time, the medicinal properties had basically been stabilized, and this furnace of elixir was considered to be more than half of the success.

The liquid medicine gradually dried in the Cheng Dan box in the Dan furnace, and Lu Nan saw that the time was ripe, so he directly increased the fire suddenly, and then suddenly withdrew it.

A basin of cold water had already been prepared in the moonlight lamp beside him, and he poured it on the surface of the Dan furnace until it was completely soaked.

At this stage, the temperature of the Dan furnace should be cooled down quickly, otherwise the residual heat in the Dan furnace will continue to bake the Dan medicine, causing its medicinal properties to be lost.

In fact, Lu Nan could have asked the drowned ghost to complete this work, but the moonlight cup is a magical object, and ordinary water will become full of aura when it reaches it, and using this water to cool down must make the effect of the pill better.

After about ten minutes, the temperature of the outer layer of the pill gradually dropped, and at this time, the furnace could be opened.

If the outer layer of the pill is not cooled, it will be too soft, and the shape of the pill may be damaged when the pill is taken.

Lu Nan stood up and opened the lid of the furnace and took out the Chengdan box in the furnace.

The use of this Cheng Dan box is also exquisite, according to the specifications are divided into nine grades and nine levels, each higher level of Dan trough capacity will be one point larger, each higher level of Dan trough will increase eight or nine.

For example, some pills such as mung beans, if only one is refined at a time, they need to be first-class and first-class pill boxes.

The shape of the Chengdan box is spherical, square, and framed.

Lu Nan used a fourth-class and third-class Chengdan box, which was shaped like a fist-sized metal ball, with many fine holes distributed on the surface, and a raised round button on the top.

Gently press the round button, the Cheng Dan box is opened in four petals, and there are a total of eighteen Dan troughs inside, each of which is inlaid with a round refreshing and refreshing elixir.

Lu Nan took out the pills one by one with tweezers, put them into the jade bottle exchanged from the system, and took the last one in front of him to observe carefully.

The pill is brown overall, with some white and cyan patterns evenly distributed on the surface.

Lu Nan's eyes were far beyond ordinary people, so he could see the black dots on the surface of the pill, and those were powdery residues.

Looking at the pill in his hand, Lu Nan felt a sense of satisfaction in his heart, no matter what the medicinal properties of this pill were, it was not easy to be able to refine it successfully.

Lu Nan calculated, the amount of medicinal materials he used was not much, ignoring the loss, it should be enough to refine twenty-four refreshing and awakening pills, and now a full eighteen pills have been produced, and the success rate of the pill is seventy-five percent.

This made Lu Nan have to sigh how important it is to have a good medicine stove.

In fact, if those alchemy masters were allowed to see this kind of result, they would definitely fall to the ground in surprise.

Although the medicine furnace has a high impact on the success rate of the pill, there is also an upper limit, and this upper limit is about 60%. If you are a novice, even if you take a Dan furnace that is ten times better than the Four Ghost Transformation Divine Furnaces, the Dan success rate will increase by about 20% at most.

The reason why Lu Nan was able to reach the 75% reverse Cheng Dan rate was not only the influence of the Four Ghost Transformation Divine Furnaces, but also his control of the flames and his wholehearted devotion.

Of course, there may also be an element of endowment and luck.

Lu Nan closed his eyes and put the refreshing and awakening pill in his hand into his mouth.

The elixir melts in your mouth, and a cool breath spreads from your mouth, running directly upwards and pouring into your mind and eyes.

When he opened his eyes, Lu Nan felt that his eyesight had improved slightly compared to before, but the effect was not too great.

After thinking about it, it's probably because my foundation is very high, so I don't have too strong feelings.

Lu Nan looked around the kitchen, then closed his eyes again, took four steps to the left according to the scene he remembered just now, and reached out to pick up the porcelain bowl next to the stove.

"Here is the bowl, the hand moved to the right twenty centimeters is the stove, the sign on the stove is Zunbai, the label is in the lower left corner, the left side is a wok, and the right side is a saucepan. To the right of the stove is a cutting board with some air-dried green onions and shredded ginger remaining on it. There is a thin crack in the lower left corner of the cutting board, and the crack is ...... long"

Just by a glance, every detail in the entire kitchen was engraved in Lu Nan's mind, like a hologram, clear and three-dimensional.

According to the Dan prescription, the duration of the effect of the Refreshing and Awakening Pill is between four and eight hours, depending on the quality and medicinal properties of the pill.

Lu Nan predicted that the duration of the Refreshing Awakening Pill he refined should be at least six hours or more, which was still a conservative estimate.

Opening his eyes again, Lu Nan hurriedly rushed to the school with a bottle of refreshing and refreshing elixir.

When I got back to school, it was almost lunchtime.

Lu Nan dragged the three people who were forgetting to sleep and eat to the restaurant outside the school for lunch, and then took them back to the library again.

After sitting down, Lu Nan took out the Refreshing Awakening Pill and said with a smile: "This is a tonic for you, let's sprint this afternoon and strive to solve the problems of the ICPC international competitions over the years." ”

"An afternoon? Are you crazy? Huang Yali said in disbelief.

Qiu and Fang Cheng also don't believe it at all, if all the problems of the ICPC international competitions in the past years can be solved, then the school competition should not be too worried, because most of the problems in the intramural competition are selected from the problems of the past years.

Cat flutter Chinese