I saw a huge secret room in front of me, rows of jade shelves, all made of medium-grade warm jade, and the shelves were full of various elixirs.

Medium-grade warm jade, a kind of jade used to preserve fresh items, similar to the refrigerator on the earth, but much more powerful than the refrigerator, medium-grade warm jade can exude a soft life force, although extremely thin, but it is extremely suitable for preserving medicinal materials.

And a piece of low-grade warm jade requires a hundred spirit stones, a medium-grade warm jade, and a thousand spirit stones, and there are thousands of warm jade piled up on these shelves.

Look at the surrounding walls, inlaid with high-grade warm jade, although the interval is large, not much, but there are hundreds of pieces on the four walls of the secret room.

Then there was the ground, with deep grooves, all of which were filled with rich spiritual liquid, and the entire secret room was filled with a huge amount of spiritual energy, and it was extremely pure.

"Immortals deserve to be immortals......"

Li Chenyu could only sigh, I am afraid that there are two or three thousand divine stones for this material for the secret room alone, which is really generous.

What he didn't know was that the Great Elder had spent 100,000 years of savings in order to make this medicinal herb storehouse.

"50 beans, 50 drops of centennial milk. ”

Although one serving is 10 metabolic beans and 10 drops of 100-year-old geocentric milk, it should be no problem to have a little more, right?

"Hmm. ”

The Great Elder stepped forward and appeared in front of a shelf, and with a wave of his hand, he took out 50 Transformation Beans.

After cultivating immortals, his brain memory is strong, and he can remember it without even thinking about it, even if the medicinal herb has not been used for a long time.

"Come on, don't you need any other medicinal herbs?"

In just two steps, the Great Elder returned to him.

"It's already ready, no longer needed. ”

Li Chenyu shook his head.

"Well, hurry up and go back to refining, I'm curious to know what you're refining. ”

The Great Elder said.

"Well, the Great Elder will know when the time comes. ”

Li Chenyu said with a smile.

......

"The metabolic beans are mixed with centennial geocentric milk to make a paste. ”

According to the method in his mind, Li Chenyu crushed the crystal clear metabolic beans except for a little green shoot in the center, and immediately some vitality emanated from it.

However, it is only a very small part, and most of the vitality of the chemical bean is in the bean body, and as long as the bean body is still there, most of the vitality can be retained.

"Dripping into a century-old calcular. ”

Li Chenyu continued to drip 10 drops of centennial geocentric milk.

The hundred-year-old earth-centered milk is milky white, has a gelatinous texture, and is filled with a lot of spiritual energy in it, because it is condensed and formed in the underground, and mixed with a trace of earth qi in it.

Li Chenyu kept stirring the two things, mixing them together thoroughly.

"Add the petals, stems, and warming. ”

Crush the petals of the fallen flowers one by one, release a dark blue breath, and then pour them into it.

"It's strange that this can still be the case. ”

Li Chenyu kept stirring the things in the small plate, watching the three things in the basin mix together, the aura of the hundred-year-old earth heart milk is logically speaking, it will escape after heating, unless someone absorbs it.

But these auras were absorbed by the fragments of the metamorphosis beans and the fallen extinct flowers, and they did not escape at all.

"It's completely paste-like. ”

After boiling for three days, the three things in the pot began to become a paste without Li Chenyu stirring, exuding a clear fragrance.

"It smells so good. ”

Li Chenyu smelled those fragrances, and was a little curious about why it was finally made into stinky tofu? Could it be because of the glow grass?

Come to think of it, that's the only possibility.

"Glowgrass additional. ”516

The glowgrass is not added directly, but is to be refined into juice.

"Poof"

A string of small flames rose in Li Chenyu's palm.

Li Chenyu carefully controlled the temperature, he had never studied alchemy, nor did he have a Dan furnace, but this step did not need the assistance of the Dan furnace.

All you need to do is use the low-temperature flame to refine the glow grass.

Due to the low temperature, it took a whole day to refine a glow grass before it turned into a drop of pure black liquid.

Li Chenyu dropped the black liquid into the paste he had made before, and continued to refine the remaining nine plants.

With the experience of the first time, the speed of refining the Glowgrass in the second time was much faster, but it was not much faster, and the low temperature was there.

Four days later, he had finished refining all ten of the Glowing Grasses.

"You have to keep cooking, and it's going to be hotter. ”

Li Chenyu thought back to the method in his mind, and the next step was only two steps, one step was to continue to cook at high temperature, until the liquid of the glow grass was completely fused with the paste, at this time, the most needed technology, because the temperature required was high, but not too high, boil it and solidify it.

The last step is to fry the stinky tofu to get rid of the smell.

"It's no different from alchemy. ”

Li Chenyu controlled the temperature of the fire more carefully, and he found that this was not alchemy? The temperature was too high for fear of damaging the medicinal effect, and the temperature was too low for fear that the medicinal effect would not be able to fuse, but the process had changed, and he mainly boiled it in a pot.

"Host, it's different. ”

The system, which had been silent for a long time, spoke.

"What's the difference?"

Li Chenyu raised his eyebrows.

"Pills are poisonous, eating too much will block the body's meridians, and the food made from the recipe, not to say that there is no such poison, but become very small, even if you eat too much, the body can digest it. ”

The system explains.

"Oh, is that so?"

Li Chenyu nodded, it seems that this is indeed the reason, the pill is only refined into a pill with the help of the temperature of the fire, and erysipelas will be produced in direct contact with the flames, which is no way.

And stinky tofu is boiled in a pot, it can be said that there is very little contact with other things, as long as the herb itself is not poisonous, then it will basically not be contaminated with toxins, and finally it needs to be fried, it is estimated that it is because of the glow grass, so this is said, the smell seems to have an explanation.

"Boil, boil, boil, boil......"

After boiling for half a month, the ointment turned from milky white to light yellow, but there was still no sign of solidification.

"Am I looking for the wrong way?"

"System, will it freeze if I keep stirring it like this?"

Li Chenyu fell into deep thought, how could he solidify all the time he had been stirring?

"Just keep cooking, and when it gets to a critical point, it will solidify quickly. ”

The system spoke up.

"Is it like this?"

Li Chenyu was a little skeptical, this system wouldn't be treating himself as a fool, but he didn't stop his movements, and continued to concentrate on cooking the things in the pot.

"It's done! The system didn't lie to me. ”

Li Chenyu continued to cook for another half a month, and the place where the stick was twisted quickly solidified, as if frozen.

"When did I lie to you......"

The system said leisurely.

"Finally, it needs to be fried. ”

Take out the solids that have solidified in the pot and cut them into small cubes, turning the palm-sized, pale yellow, and somewhat transparent solid into small squares two fingers wide.

"Stinky tofu, stinky tofu, hehe. ”

Li Chenyu couldn't help but think of the stinky tofu on the streets and alleys, I don't know if the taste will be the same?