The alchemy technique is completely different from that in the hands of Hua Tuo and others.

Zhao Yu refining elixirs, using magic power to attract fire from wood to activate the jade elixir furnace, using the method of immortality, which is convenient and quick to refine.

However, the alchemy technique learned by Hua Tuo and others, as well as Zhao Ji and Da Qiao, was a refining method compiled by Zhao Yu in order to facilitate mortals and cope with mortals' abilities.

They have no magic power, cannot ignite the wood fire, nor can they activate the jade elixir furnace.

After all, the jade alchemy furnace is a half-magic weapon that has been refined to a certain extent, and ordinary fire cannot be activated.

Therefore, whether it is Hua Tuo and others, Zhao Ji and Da Qiao, the alchemy furnaces used to learn alchemy are ordinary bronze alchemy furnaces. Burning wood and using ordinary fire is like decocting medicine, with more processes and more complicated refining methods.

They have no magic power, and they cannot directly use their spiritual consciousness, so when refining, their grasp of the temperature and timing depends more on experience and feelings. It is impossible for them to refine dozens of pills in just one furnace like Zhao Yu.

Even if you really learn alchemy, you can start the furnace ten times and refine the finished product twice or three times, you will be considered to be very skilled.

It is absolutely impossible to achieve a 100% yield rate.

This is the limitation of mortals.

It is really difficult to grasp the temperature and timing.

Sometimes Zhao Yu would wonder if he could make an assembly line, could he make mass-produced pills with constant heat and timing?

But it was immediately denied because it was impossible.

To make pills, you must have the most accurate grasp of the medicinal properties. The medicinal properties vary between the plants of medicinal materials. Even if the same two packs of medicinal materials are of the same weight, their medicinal properties will also vary according to different plants.

The difference in medicinal properties determines the timing of the transformation of civil and military status when making pills, and the timing of forming pills.

Compared with the Western medicines in modern time and space, one is in the sky and the other is in the earth. Western medicine can be mass-produced, but Dan pills have much higher demand for accurate medicinal properties than mass-produced Western medicines. Once there are some slight differences, not only can they be used to make poisons if they are used to make them waste.

Therefore, for mortal doctors, alchemy lies in the two elements of experience and feeling. Only when you practice more and have experience will the rate of elixir formation be improved. You have good talent, sensitive feelings, and a stronger grasp of the timing, which also has a blessing effect on the rate of elixir formation.

In this way, the consumption of the elixir compared to the medicinal materials will be high.

If one hundred kilograms of various medicinal materials could produce 200 pills of elixir pills in the past, it was because there was no possibility of failure in Zhao Yu, who knew the basic alchemy techniques. In the hands of ordinary doctors, even if they had fully learned alchemy, one hundred kilograms of various medicinal materials could produce one tenth of elixir pills, that is, twenty pills, which would be great.

Of course, the higher the martial arts cultivation of the alchemy, if the alchemist's cultivation enters the realm of seeing the gods with a qi, his soul gradually becomes sharper and his senses gradually improve, and he will also be blessed with alchemy.

After all the above, the pills refined by Zhao Yu are more than twice as effective than those refined by ordinary methods after simplification and weakening. This does not lie in the medicinal materials, but in the method of refining. The difference between ordinary fire and wood is the difference between half-mastery alchemy furnace and ordinary alchemy furnace, and in the difference between imperfections.

However, as long as mortals can refine it, it will be fine if the medicine is less effective and more expensive, and everything will be worth it.

For several consecutive days, Zhao Yu was giving Zhao Ji and Da Qiao hand in hand.

The knowledge of alchemy is in their minds. In the process of learning and practice, this knowledge is absorbed by them bit by bit. Especially Zhao Ji, because of her profound cultivation, she only refined the first furnace of Yangyuan Pill after Hua Tuo. Da Qiao's cultivation was one level shorter, and her grasp of the temperature and timing was not enough.

But as long as you persevere and experience comes, everything will not be a problem.

However, Xiao Qiao, seeing her sister's alchemy, also yelled to learn it. But after only two days of studying, she was no longer interested. She didn't know where to go crazy.

For example, Mi Zhen was not very interested in this. Sun Ren focused all his energy on practicing martial arts. Her martial arts cultivation was also the highest among Zhao Yu’s five wives and concubines, except Zhao Ji.

Three years of Jian'an have passed in a flash, and it is time for the end of the year again.

In the deep winter, the wars everywhere finally stopped temporarily.

Cao Mengde took the time to visit the villa, chatted with Zhao Yu for a long time, and then left in a hurry.

He has too much time.

However, Han Shu, Cao Ang and eleven other disciples came to the villa together this time and stayed in the villa for half a month before leaving the villa after the Lantern Festival.

This year was a year of great strides for Cao Mengde.

He defeated Yuan Shao in the first half of the year, and defeated the northern barbarians in the second half of the year.

When Yuan Shao and Gongsun Zan formed Wuhuan, Xianbei, and more than 100,000 Hu cavalry heading south, the momentum was indeed quite significant.

But facing Cao Mengde's powerful military attack, the Hu cavalry and the Wuwan Xianbei were all over the world.

In addition, his internal opinions were not unified, so Gongsun Zan was not actually very willing to Hu Qi intervene in the internal war of the Han Dynasty.

Although Gongsun Zan is not as talented as a hero, he can be regarded as half a hero for the Han Dynasty. Gongsun Zan has always been tough in his attitude towards the northern barbarians. At the beginning, he even had great conflicts with Liu Yu of Youzhou.

Gongsun Zan killed Liu Yu, the reason why this cannot be ignored.

Liu Yu was kind, while Gongsun Zan had violent methods. Liu Yu believed that he could recruit Wuhuan and other Husbands for his own use. However, Gongsun Zan believed that his intentions would be different if he was not of our race. The Husbands were afraid of power but did not have virtue. Liu Yu recruited them, so he went to fight. Therefore, the two sides had many conflicts.

In fact, in the chaotic times of the end of the Han Dynasty, Liu Yu's behavior was wrong. The Hulu would not go south because of your gentleness and goodness to him. The weaker the Han Dynasty was, the more the Hulu would go south. Gongsun Zan's determination was a strong shock to the Hulu.

This is the reason why he is half a hero.

Gongsun Zan blocked half of the barriers of the northern barbarians.

Although Cao Mengde was powerful and unyielding, he wanted to seize Youzhou after defeating Yuan Shao, and Gongsun Zan reluctantly agreed to Yuan Shao's strategy of connecting with barbarians, but if he forced himself to do so, there would be hidden dangers.

If more than 100,000 Hu cavalry can achieve something, this contradiction may not be exposed for the time being. Unfortunately, Cao Mengde issued a military order, which ordered Xiahou Dun to take the initiative to attack. He went to Shanggu and defeated the 100,000 Hu cavalry in a head-on battle, beheaded more than 20,000, captured more than 10,000, and defeated the rest.

In this way, the alliance between Yuan Shao and Gongsun Zan was immediately broken.

As Xiahou Dun continued to advance, Gongsun Zan died in western Liaoning, and Yuan Shao fled to Liaodong alone.
Chapter completed!