The moment the lid of the pressure cooker is opened, a large stream of hot steam is emitted from the pressure cooker.

Along with the hot steam, there are bursts of rich medicinal fragrance.

Different from ordinary Chinese medicine, ordinary Chinese medicine can be boiled, and the bitter taste can also be smelled in the smell.

However, the smell that emanates from the pressure cooker is also the taste of traditional Chinese medicine, but it is very different from the medicine boiled in ordinary Chinese medicine.

Except for the faint medicinal smell in the smell, which can be smelled as traditional Chinese medicine, it is not at all like the traditional Chinese medicine soup.

This kind of taste is fragrant, although it is strong, it is not depressed, not greasy, and there is a faint sweetness in it when you smell it carefully.

When the two of them smelled this smell, they were instantly obsessed with it, and greedily sniffed the smell in the air.

"Success?!" the two looked at each other in surprise, and they both saw excitement in each other's eyes.

"Come, let's take a look!" Nangong Yu said to Dean Zhang as he dispersed the steam emitted from the pressure cooker.

The two of them approached the pressure cooker together and looked inside.

However, in the pressure cooker, there is no pill or anything like that, but a layer of paste is sticking to the bottom of the pot.

"Failed?" Dean Zhang cast an inquiring glance at Nangong Yu.

Seeing Dean Zhang's gaze, Nangong Yu shook his head, he was also refining the pill for the first time, so naturally he didn't know whether this was a failure or a success.

"Don't worry about it so much, let's get it out and take a look first!" Nangong Yu said to Dean Zhang.

So Dean Zhang took a small bowl, and Nangong Yu put all the paste-like substances in the pressure cooker into the small bowl.

It wasn't really visible in the pressure cooker, and both of them carefully observed the paste in the small bowl.

It was like amber, a faint brownish-yellow, but not all brownish-yellow, but slightly transparent.

Just like a gelatinous substance, Nangong Yu lightly touched it with a spoon and found that this paste-like substance also had a bit of elasticity and sexuality.

"Master, have we succeeded or failed?" Dean Zhang asked Nangong Yu as he looked at the lump of paste-like substance in the bowl.

After hearing Dean Zhang's question, Nangong Yu did not answer, but took a spoon, dug a spoon and sent it to his mouth.

"Master, don't, what if it's poisonous!" Dean Zhang stretched out his hand to stop it, but after Nangong Yu put the spoon in his mouth, he didn't even chew it, so he swallowed and swallowed it directly.

Nangong Yu naturally couldn't have thought of the fact that the paste substance in the bowl was poisonous.

However, as Nangong Yu, who had exchanged top-level medical skills in the system, it was too simple to distinguish whether a substance was poisonous or not.

The fragrance emitted by this substance alone has the function of making people feel pure and comfortable, and Nangong Yu can conclude that this substance is absolutely impossible to be poisonous.

After swallowing and swallowing the paste-like substance, Nangong Yu closed his eyes and began to feel the medicinal effect of this paste-like substance.

After a while, Nangong Yu opened his eyes, and his eyes were full of disbelief.

"Did you succeed, Master?" Dean Zhang saw the shocked expression on Nangong Yu's face, so he hurriedly asked Nangong Yu.

"No, no!" Nangong Yu shook his head, the shock on his face seemed to take some time to digest.

"Did you fail?" After hearing Nangong Yu's words, Dean Zhang's face seemed to be a little lonely.

"Could it be that this thing is poisonous, Master?" Immediately after that, Dean Zhang saw that the shocked expression on Nangong Yu's face had not disappeared, so he hurriedly asked Nangong Yu.

"No, this thing seems to be even better than the medicinal effect recorded in the ancient books!" Nangong Yu said to Dean Zhang.

"Why did we not only succeed, but also have better medicinal effects?" After hearing Nangong Yu's words, Dean Zhang also had a shocked expression on his face.

"That's right, I don't believe you can taste it!" Nangong Yu said as he handed the spoon to Dean Zhang.

Dean Zhang didn't say anything, took the spoon and scooped up a piece of paste and put it in his mouth.

Immediately afterward, Dean Zhang began to close his eyes and savor the taste of the paste.

"The taste, it's very good?" After a long while, Dean Zhang opened his eyes and said to Nangong Yu.

Dean Zhang naturally does not have the skills of Nangong Yu, and he can directly experience the efficacy of the medicine.

All Dean Zhang could do was tell that the drug seemed to taste good.

After hearing Dean Zhang's words, Nangong Yu smiled at Dean Zhang and did not speak, but the expression on his face was a little strange.

Dean Zhang couldn't help but be a little puzzled when he saw Nangong Yu's strange expression looking at him.

Nangong Yu saw that Dean Zhang was a little confused, so he smiled lightly, took a mirror from the side, and handed it to Dean Zhang.

Dean Zhang took the mirror with a puzzled expression in his heart, but when he held the mirror in front of him, he couldn't help but be stunned.

At this moment, Dean Zhang looked at himself in the mirror with a shocked expression on his face.

Dean Zhang was already in his eighties at this time, and the hair on his head had already turned gray, and his face also had a deep imprint of time.

But at this moment, Dean Zhang looked in the mirror and was surprised to find that his hair had returned to jet black.

Although the wrinkles on my face have not disappeared, my skin has tightened and become plump again.

"This, the effect of this medicine is too amazing!" Dean Zhang said to Nangong Yu in shock.

"That's right, so we definitely can't sell this stock solution directly, we must dilute it before selling it!" After hearing Dean Zhang's words, Nangong Yu nodded with a serious face and said to Dean Zhang.

Hearing Nangong Yu's words, Dean Zhang also nodded with a serious face.

In retrospect, this seems to be the best way to go.

So, according to the paste already in the bowl, the two began to mix the dilution ratio.

Eventually, after experimenting with many different combinations, the duo discovered a perfect ratio.

In this ratio, the medicine not only still has enough medicinal properties to achieve the functions that Nangong Yu said before, but it also does not have too obvious effects.

"Haha, these two problems have been solved together!" Nangong Yu pushed with a smile, and Dean Zhang said.

"Two questions?" Dean Zhang asked Nangong Yu with some confusion.

"The purpose of coming to you at the beginning was that I was afraid of insufficient production capacity, and I wanted your apprentices to refine the pill together!" Nangong Yu said to Dean Zhang.

After hearing Nangong Yu's words, Dean Zhang nodded, now that the pressure cooker can be quickly refined, the problem of production capacity can be easily solved.

"Now we just need to buy some more pressure cookers and continue to produce!" Dean Zhang said to Nangong Yu.

"I'll go buy a batch of the same pressure cooker right away!" After hearing Dean Zhang's words, Nangong Yu nodded.

"Didn't you say that your apprentices are coming in the afternoon, then let them refine with you in the afternoon!" Nangong Yu said to Dean Zhang.

After hearing Nangong Yu's words, Dean Zhang nodded.

Although they had the recipe for the production of the pill, Dean Zhang's apprentices would definitely be born in the first refining and the refining would fail.

This is also an inevitable thing, and the only solution is practice, as long as you refine too much, you can easily solve it.

Therefore, although the production efficiency of the elixir had increased, Nangong Yu still desperately hoped that Dean Zhang's apprentices could start refining it immediately.

Nangong Yu felt that when Dean Zhang's apprentices were practicing, as long as ten pots could succeed in one pot, it would be quite good.

After hearing Nangong Yu's words, Dean Zhang nodded.

"Then when will our medical hall open?" Dean Zhang seemed to have thought of something, and asked Nangong Yu.

Now that the problem of pill production has been solved, the opening of the medical hall is imminent.

"Don't worry!" After hearing Dean Zhang's words, Nangong Yu shook his head.

"Now when we have a certain amount of pill accumulation, it's not too late to open again!" Nangong Yu said to Dean Zhang.

"Although we have solved the problem of production alone, there will definitely be a large number of people rushing to buy when we open, and we must prepare sufficient production!" Nangong Yu said to Dean Zhang.

After hearing Nangong Yu's words, Dean Zhang nodded.

"Well, I'll go buy a batch of pressure cookers in the afternoon and send them here. Nangong Yu nodded, picked up the spoon again, dug out a piece of paste, and said to Dean Zhang after putting it in his mouth.

"Then, Master, go slowly!" After hearing Nangong Yu's words, Dean Zhang got up and said to Nangong Yu.

Nangong Yu nodded to Dean Zhang, then got up and walked towards the door.

Suddenly, when Nangong Yu walked to the door, as if he had thought of something, he stopped, and glanced back at Dean Zhang again.

"What's the matter, Master?" Dean Zhang felt a little unclear when Nangong Yu looked at him, so he asked Nangong Yu.

"Now you can practice the exercises and methods I taught you!" Nangong Yu turned his head back to the office, sat down on the sofa and said to Dean Zhang.

After hearing Nangong Yu's words, although Dean Zhang felt a little puzzled, he still walked to the central open space of the office and put it on.

Although Dean Zhang was a little confused at first, after performing a few tricks, the doubts on Dean Zhang's face turned into excitement.

Nangong Yu looked at the excited Dean Zhang, and a smile appeared on his face.

This special medicine not only made Dean Zhang's hair darker and wrinkles less, but also strengthened Dean Zhang's physical functions.

It can't be said to be strengthened, it's like rejuvenation, which has restored Dean Zhang's physical skills to when he was young.

When he was young, Dean Zhang's physical fitness was naturally much better than that of Dean Zhang now.

Coupled with the body refining method taught to Dean Zhang by Nangong Yu, Dean Zhang didn't sweat after beating it, but his face was slightly ruddy.

"I feel that my body is so good!" After finishing a set of exercises and methods, Dean Zhang looked at his body excitedly, and then looked at Nangong Yu and said.