Return to the rental house.

Chen Feng opened his laptop and inserted the USB flash drive.

There are a total of thirty-six video lessons in the folder, as well as several written materials.

He first clicked on the general document and scanned it roughly.

The core principles of elixirology are not complicated.

Through experience and perception, the direction of the spiritual energy in the spiritual materials is controlled, auxiliary materials are added at key nodes to neutralize and guide, stabilize, and finally the spiritual materials are prepared into potions that are safe to take.

However, it is very difficult to operate in practice. The direction of the flow of spiritual energy is invisible to the naked eye and depends entirely on the practitioner's perception to capture it.

A slight misjudgment can turn into poison at least, or a bomb to hurt people at worst.

This is also the main reason why the government strictly controls spiritual medicine.

Moreover, if ordinary people want to learn this craft, the biggest bottleneck is not the courses, but the materials.

Spiritual materials in the real world are already scarce. Most of them are produced from restricted areas and are expensive.

There are not a lot of spiritual materials for you to try and make mistakes over and over again. Just watching the course videos is equivalent to talking on paper.

But Chen Feng didn't care about this.

He currently has twenty-one young bloodroot plants on hand, two semi-adult plants and one adult plant.

I'm afraid that none of the spiritual medicine graduate students in the laboratory can practice using bloodroot experimental materials as much as he does.

And even if it’s not enough,

At worst, he will enter the world of Daxu next time to collect it.

Chen Feng flipped through the pages a little, and did not bite off more than he could chew and learn all the courses.

Instead, he directly searched for chapters related to bloodroot and found the ninth lesson "Basic Preparation of Common Dry Spirit Materials".

Click on the video and start learning.

…

for the next seven days.

Chen Feng's life was compressed into two things.

Cultivation, and refining medicine.

During the day, take half a semi-adult bloodroot plant and practice the seven-step breathing method to improve your physical fitness.

After seven days of hard training, his physical fitness has been successfully improved to 12.8, and his one-arm strength is almost 500 kilograms.

In the evening, I studied the video courses repeatedly, and then tried to make adjustments.

The key to removing the dryness of bloodroot is to neutralize it with active lipids in animal spiritual materials.

The course mentioned several common animal spiritual materials that can be used as supplementary materials, including the heart tissue of low-level alienated insects.

The heart of Tie Jia Hui Fei is just right for use.

The first five attempts, all failed.

Three times, the direction of the spiritual energy surge was misjudged, and the medicine liquid directly deteriorated and turned black.

One time, the excipients were added too late, and the dryness of the bloodroot had spread, turning the entire bottle of medicine into waste liquid.

Another time it almost exploded, but fortunately the quantity was small, but the bottle was broken.

And not until the sixth time.

Chen Feng extracted the active lipids from the heart of the Tie E Hui Fei and injected it precisely at the moment when the blood root herbal liquid began to surge. He pressed his right index finger against the wall of the bottle and felt the flow of spiritual energy inside.

Three seconds later, the surge subsided.

The medicinal liquid changed from turbid dark red to clear light red, with a fine sheen on the surface.

Done!