I carefully checked the poison refining knowledge of the "Poison Chapter" in the "Xuantian Returning to the Source Sutra", in fact, Tangshan has learned almost all these theoretical knowledge, but it is the first time to do it, so I carefully review it again.

In "Poison", Tang Shan selected the poison that was refined for the first time, and he chose the most basic poison Ecstasy Pill to practice.

"This Ecstasy Pill is an upgraded version of an ordinary drug, it melts when it sees water, it is colorless and tasteless after melting in water, and after grinding them into powder, there is no taste, and he can also use fire to ignite, colorless and tasteless, the smeller is unconscious, it is a good thing for Yin people!"

To refine the poisons in the "Poison Chapter", you must first be able to identify the medicinal materials required for the poison, and know the various medicinal properties of the medicinal materials well.

He had already cultivated the Eye of Returning to the Source in the Xuantian Returning to the Source Sutra, and at a glance, he could perfectly grasp the medicinal properties of the medicinal materials, of course, the more skilled this Returning Eye was, the higher the level of the elixir that could be identified, and the clearer it would be.

The Eye of Returning to the Source is a Taoist art that can distinguish all things, cultivating to the highest level, all things in the world, whether visible or invisible, can be distinguished, one law is universal and ten thousand laws are passed, Tangshan's Eye of Returning to the Source is just a beginner, naturally it is impossible to reach such a high level, it is enough to identify these herbs.

The materials used in the Ecstasy Pill are very ordinary and easy to obtain, except for one of the medicinal materials called the Phantom God Flower that Tang Shan has been looking for for a long time in the Daowu League's medicinal material trading center, the others are easy to buy, in addition to the medicinal materials, he also bought a bunch of jade bottles to load the finished Ecstasy Pill.

In the "Poison Chapter", there are not only the medicinal materials needed to refine the elixir, but also the detailed refining methods.

"This refining poison and poison pill are similar to the steps and refining techniques of refining the pill in Lin Xiandao's memory, no wonder my master said that alchemy was only learned by him when he was refining poison. ”

Tang Shan made some comparisons between the method of refining poison and the method of refining pills.

For example, what materials should be put in the refining of the Ecstasy Pill first, what materials should be put later, what is the correct order, what medicine should be mashed first, what medicine needs to be fresh, what kind of medicine needs to be put in, what kind of heat needs to be boiled to be put in another medicine, when is the fire in the furnace, when is the fire small, how big the fire, how small the fire, etc., etc., complex tight, no matter which step is wrong, it will affect the efficacy of the medicine.

This is what Tangshan wants to practice, as for the most critical issue of the size of the fire when refining the Mystery God Pill, because there is the existence of Xuantian True Fire that can do whatever he wants, it is not a problem.

Tang Shan took out the Dan furnace that Lin Xiandao used to refine the pill from the savings ring, and entered the innate true qi, and the Dan furnace that was originally the size of a palm became larger in the wind, and it increased several times.

"Yes, yes, this Dan furnace can also be bigger and smaller, although it can't be infinitely bigger and smaller, but there are more choices, you don't have to buy a different caliber Dan furnace, it's very convenient." Tangshan was overjoyed.

Under normal circumstances, the larger the Dan furnace, the more difficult it is to control the fire throat, but to refine a large number of ordinary pills or poisons, it is much more convenient and faster to use a large Dan furnace.

However, sometimes, to refine some more precious elixirs, you need a small Dan furnace to control the fire throat and avoid mistakes.

The large Dan furnace has a lot of medicinal materials and a large number of pills to refine, saving time and effort. The small Dan furnace refines some important pills, each with its own benefits.

For the first time in Tangshan, you have to use a moderately sized Dan furnace, of course, it will not be too big, and a slightly smaller one is the best, test it and practice your hands.

There is a formation in the Dan furnace, through which the true fire of the alchemist is transmitted, and the size of the true fire is controlled, and the consumption of true fire in the alchemist's body through the formation will be greatly reduced.

Tangshan sent out the Xuantian True Fire, and transmitted the True Fire in the body into the Dan Furnace to have a preliminary understanding of the Dan Furnace.

Then he strictly followed the instructions of Dan Fang, step by step, according to the steps of refining the Ecstasy Pill in the "Poison Chapter".

Since it was the first time to refin, although Tang Shan had thought about the refining method countless times in his heart, because his hands were very different, he practiced it several times before he succeeded.

Half an hour later, Tang Shan took back the Xuantian True Fire in time, waited for a while, opened the Dan furnace, Tang Shan saw a few pills, and the Dan was completed.

Tang Shan, who has no guidance like Tang Shan, can achieve such results for the first time, which shows that his talent for alchemy and poison refining is not bad, but he still has a lot of room for improvement in terms of heat and experience.

Tangshan made part of the Ecstasy Pill into an ecstasy incense that could be lit, and part of the Ecstasy Pill was put into a small jade bottle. Subsequently, he began to concentrate on refining a large number of Ecstasy Pills to become proficient.

This time, the amount of Ecstasy Pill he refined was larger, and the low-grade materials in the storage ring were thrown into the alchemy furnace without money.

A few hours later, more than a dozen Ecstasy Pills were baked.

Tang San let go of his hands and feet, and the refining speed was more than twice as fast as last time.

The technique is gradually proficient, this time, refining is another kind of Yin people's poison pill and qi pill, this pill can make him gradually decrease or even disappear whether it is the internal strength and qi of the martial artist, or the true qi and true yuan of the qi refiner.

However, this time, after Tangshan practiced, he opened the furnace and found that there were several Qi Transformation Pills in it, which were either flat or deflated, and some even cracked.

Out of a total of more than ten Qi Transformation Pills, six thousand were unsuccessful.

The rest of the successful, there are a few that are still slightly lacking in color, which is due to the lack of heat.

"Alas, I forgot about the success rate of refining poisons and pills...... Tang San sighed lightly.

But he was not discouraged, according to Lin Xiandao's memory, the success rate of refining pills by qi refiners was generally not higher than fifty percent.

In other words, out of ten pills, five can be produced, which is very good.

Next, Tang Shan meditated and breathed to restore the innate true qi consumed in his body, and after the true qi recovered, he began to work again, and he first put away the refined Qi Pill. He was going to refine a strong poison, the Five Venoms, and the poison that would seal the blood of the martial artists below the seventh rank and the qi refiners below the fetal construction stage.

The five venoms are made of five poisons and elixirs, and they are the most elementary poisons of the blood-seeing marquis, and the five venoms are generally smeared on the hidden weapon, so that the secret weapon becomes the hidden weapon of the blood-sealing marquis.

The hidden weapons in the "Xuantian Returning to the Source Sutra" are divided into ordinary hidden weapons, poisonous hidden weapons, ordinary non-toxic hidden weapons are used in general battles, and poisonous hidden weapons are used when there is a grudge or life-saving.

The process of refining the five venoms requires many procedures, and some materials need to be specially treated.

For example, the toxin in the body of the centipede, one of the five poisons, needs to be secreted by special means, and the work needs to be done step by step, not sloppily.

Fortunately, he cultivates the "Xuantian Returning to the Source Sutra", which is the nemesis of poisons and poisons, and he can let go of his hands and feet in the process of refining these strong poisons.

After working for three or four hours, Tangshan successfully refined a small bottle of venom, which was filled with a special hundred-year-old purple jade bottle, and a ban was set up to prevent leakage.

The blue and faint liquid, rippling in the bottle, beautiful and thrilling, who would have thought how terrible it was?

It can be said that this bottle of venom consumed a lot of effort from Tangshan, and was refined with the secret technique of making poison in "Poison".

"Now that there is finally a more advanced poison, take a break and refine some basic secret weapons, and apply these five venoms, so that there are finally some means to kill people and protect themselves......"

Tang San exhaled lightly, and began to meditate and breathe out to recover his true qi, and after recovering his true qi, Tang San began to be busy refining secret weapons again, and the whole person entered that state of extreme obsession, not asking about the outside world.

It wasn't until the secret weapon was refined and the secret weapon was coated with five venoms, his maid Xia Gua came to report, and his father Tang Shize returned to the Hou Mansion that Tang Shan came out of the room.