After finishing his homework, Lu Yao began to arrange for them to go to sleep, while he himself entered Fanghu Immortal Island and prepared to open the furnace for alchemy.

When he entered Fanghu Immortal Island two days ago, Lu Yao found that the Yuanyang Red Iron Furnace had absorbed enough spiritual energy, and he had officially advanced from a magic weapon embryo to a low-level magic weapon.

It's just a pity that it was inconvenient at sea at that time, and now that I have returned home, I can rest assured that I can enter the alchemy of Fanghu Immortal Island, anyway, the two little ones sleep with their grandmother, so they don't have to worry about waking up and not finding themselves.

Entering Fanghu Immortal Island, Lu Yao took the Yuanyang Red Iron Furnace to the beach to clean it and put it aside to dry for use.

He came to the middle of the medicine garden that he had cultivated in the woods, and selected some of the ripe spiritual grass that had been transplanted from the mysterious valley of Longshou Mountain last time.

At present, in the medicine garden, there are two hundred-year-old grass fruits suitable for refining medicine, five ghost cut grass and horse chestnut lotus, and three dragon beard grass and ginseng fruit.

The number of plants that are less than 100 years old is a bit much, more than 20 plants. Continue to let them grow for less than ten years, and Lu Yao will not use them for the time being.

Lu Yao planned to pick some elixirs that were less than a hundred years old to practice his hands, and at the same time familiarize himself with the new alchemy furnace.

With the strength of the alchemy master in his previous life, he was not worried that he would fail to practice the elixir that had been directly used for a hundred years, but the number of top-grade pills or top-grade pills produced in that way would be reduced, which would be a waste in another aspect.

A furnace of pills can produce up to twelve pills, and with the strength of Lu Yao's alchemy master in his previous life, refining low-grade pills can ensure that the furnace is full; the furnace rate of medium-grade pills is eighty percent; the rate of high-grade pills is only fifty percent; and the rate of top-grade pills is less than two percent.

As for the grade of the pill, the mortal grade and the low-grade pill can guarantee that seventy percent is the top grade, two percent is the best grade, and one percent is the middle grade, and it is impossible to say that the lower grade is impossible.

It's hard to say about the intermediate pills, it depends on luck, but most of the time, Lu Yao can still refine more than sixty percent of the middle-grade pills, and there is a chance of producing the top grade or the best.

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Lu Yao picked two spiritual herbs of the poison pill, among which the main ones were ghost cut grass, horse chestnut lotus, and the auxiliary medicinal materials had four flavors, no spiritual medicine was needed, ordinary medicinal materials were sufficient.

It is precisely because of this that the poison pill can only be attributed to the mortal-level elixir, not the elixir.

The four auxiliary herbs of Hua Poison Pill are: Desmodium, Sophora Sophora, White Flower Snake Grass, and Geranium Seed.

As long as there is money for these auxiliary medicinal materials, they can be bought from the Chinese herbal medicine stores outside, and Lu Yao has already bought enough auxiliary medicinal materials to refine dozens of copies by himself.

Everything was ready, and Lu Yao collected a pile of spirit wood from outside his house that had been cut and dried last time.

These were all high-quality woods that he had carefully selected, and they were most suitable for making fire alchemy.

Lu Yao put the cleaned Yuanyang red iron furnace away, threw a few pieces of dry spirit wood under the furnace, lit the fire, and the spirit wood made a "Bibo" sound, followed by a raging flame.

The spirit wood prepared by Lu Yao was carefully cut by him, and each piece of wood was the same size, so as to ensure that the flame burned steadily.

The most feared thing about alchemy is that the flame is unstable, the flame temperature is too strong and it is easy to scorch the medicinal materials, and the temperature is too low to remove the impurities in the medicinal materials.

This is also why alchemists and refiners are particularly eager to have a heaven and earth spiritual fire, only the spiritual fire can provide a suitable temperature according to the owner's wishes, making both alchemy and refining much easier.

Fortunately, what Lu Yao was refining now was only a mortal pill, and the use of wood containing spiritual energy was enough to melt and refine those medicinal materials into an essence suitable for alchemy.

As the flames burned, Lu Yao noticed with his divine sense that the inner furnace of the Yuanyang Red Iron Furnace suddenly turned red, and he began to lift the lid and put the first auxiliary medicinal herb Desmodium into the furnace.

Soon, under the effect of the flames, Lu Yao's divine sense found that the money grass began to slowly melt, turning into a pile of liquid containing various impurities.

This is the most critical step in determining whether a furnace of what grade of elixir can be refined, the cleaner the impurities removed, the more essence of the medicinal materials left, and the higher the probability of refining the middle and upper grade or even the best.

In the same way, the more impure the medicinal liquid, the more impurities, and in the end, even if it is practiced by luck, perhaps because there is too much erysipelas, it can only be a low-grade or medium-grade pill.

With Lu Yao's incomparably rich experience in his previous life, coupled with his powerful divine sense that had been mutated several times, he could easily remove all the impurities in the Desmodium Grass, leaving behind a cloud of emerald-colored medicinal liquid.

Next, Lu Yao separated these medicinal liquids from the alchemy furnace, guided the medicinal liquids out with his divine sense through the preset separation hatch in the alchemy furnace, and packed them in a washed jade bottle.

Then, by analogy, after refining several other auxiliary medicinal materials, Lu Yao began to refine the two main medicines of the Poison Pill, the low-level Spirit Grass Ghost Cutting Grass and the Seven Leaf Lotus.

Compared with ordinary medicinal materials, the purification of elixir is much more troublesome, and it takes Lu Yao several times longer to purify the medicinal liquid.

After all the medicinal materials needed on the Dan Fang were purified, Lu Yao began the most important stage of formal alchemy.

Whether or not the pill can be refined according to the medicinal materials on the pill depends on whether these purified medicinal liquids can be perfectly fused together, and if it is successful, the pill will be refined by 80%.

The remaining 20 percent is bin bin and she.

The process of fusion of liquid medicine is also called Ning Dan, and it is also a very risky step in this process, if there is a mistake in the purification process, at most the medicinal materials will be scrapped, but if there is a mistake in the process of Ning Dan, it will be fried.

Once an explosion furnace incident occurs, not only will all the medicinal materials be scrapped, but also the life safety of the alchemist will be endangered.

When Lu Yao first started to learn alchemy in his previous life, there were alchemy furnaces scrapped at both ends in three days.

Fortunately, it is very cheap to buy a low-level magic weapon alchemy furnace in the cultivation realm, as long as you are a refiner, you will basically build an alchemy furnace. Usually, only a dozen lower-grade spirit stones are needed to buy an alchemy furnace.

But in this life, Ning Dan is just an easy thing for Lu Yao, and there will be no end to the fryer at all.

In the process of condensing the pill, it is necessary to inject a large amount of aura into the pill, which determines how many pills can be turned into in the end.

The more aura is injected, the more pills can be pulled out in the end, but it can't exceed the tolerance range of the liquid, otherwise there will be a situation of exploding.

This is an extremely test of the alchemist's experience, which is usually fed through one furnace of elixir after another.

The higher Laden's technique, the greater the chance of a full furnace of pills refined from a furnace of pills, otherwise there will be a waste. 2k reading web