Regarding the gold coins handed over by Chen Hao, the evil master did not refuse, after all, no one would have trouble with the money.

"Tell me, what do you want to do." After the evil master put away the gold coins, he directly asked Chen Hao about his intentions.

"I've heard that you're an expert in poison potions, so I'd like to learn from you." Chen Hao completely showed a humble attitude, just from the layout of this room, it could be seen that the evil master was really a poisonous idiot.

"Have you ever used poison?" The evil master did not answer him, but directly asked Chen Hao a question.

Chen Hao thought for a moment, took out a venom bomb from the Qiankun bag, and respectfully handed it to the evil master.

The evil master took the venom bomb, looked at it, and wanted to unplug one of the switches on it.

"Master, be careful, it's a bomb!" Chen Hao hurriedly reminded.

The evil master glanced at him, sneered, and pulled out a switch on the bomb hard.

This action frightened Chen Hao and hurriedly hid back.

Hey, it didn't blow up.

This evil master is really a master.

The direct evil master sniffed the venom soaked in the venom bomb, and closed his eyes to experience it carefully, as if he was tasting a bottle of wine.

He nodded, then shook his head.

"The venom is good, it is a mixed venom, but the refining method is too rough and the proportion is not right, the number of purification should only be once, and the formula of the venom should be spider venom and scorpion venom, as well as snake venom."

Chen Hao looked at the evil master dumbfounded, he didn't expect that he would be right by him, he purified it once, and the formula happened to be these three poisons.

"This venom is too coarsely processed, and it would be a pity if the effect was only less than half of it."

"Master, what do I need to do to do better at this?" Chen Hao heard that this venom bomb still had a lot of room for improvement, and hurriedly asked.

The evil master glanced at him, a sneer appeared on his face, and said, "The president said that he asked you to come over to help with chores, not to ask questions." ”

At this time, Chen Hao felt that something was wrong, his relationship with the old man was not so good, and it was normal for him not to answer such a core question directly, after all, it had also embarrassed him before.

"The venom over there, you have to purify all that venom at least three times." The evil master pointed to the corner of the wall and said.

Chen Hao looked in the direction he was pointing and saw a pile of bottles and cans as high as a mountain.

I'll go, so much, all Venom?

This is a paradise for drugs.

"Yes, Master." Chen Hao responded.

There was no displeasure on his face, he could feel that this old man was not bad, purifying the venom seemed to be hard work, but this was the most basic step in refining the venom, the higher the purity of the venom, the more it could produce high-quality poison.

Chen Hao knows this very well, so he won't complain.

"Take the tools yourself on the table, I'll go rest for a while, don't wake me up." With that, the evil master walked to a nearby room.

Chen Hao turned around and glanced at the pile of venom in the corner of the wall again, it seemed that he was really busy.

He first sorted these bottles and cans into categories, and the venom purification must be classified first, otherwise it will be easy to cause refining errors if it is messed up, and there will be a lot of trouble later.

After classifying the venom, he looked at the existing venom, and finally selected the venom of a poisonous snake with a lower difficulty to purify.

Although the evil master's laboratory is messy, the tools are still quite complete, and they are wiped cleanly, indicating that the owner of these tools is very fond of these tools.

Chen Hao picked up a bucket of venom and poured it into the vessel and began his purification work.

The process of venom purification was the same as what he had done before, except that the amount of purification this time was much larger than the previous one.

Chen Hao was like this, tossing this plate of venom on the experimental table, even if he had turned his sense of smell to the lowest, he could still smell the fishy smell.

Chen Hao was hard to purify the basin of venom.

Of course, the effect of venom purification is quite unsatisfactory, and there are still many impurities in it.

Chen Hao sighed involuntarily at the basin of venom in front of him.

I had to do it all over again.

He patiently poured the venom into the purified vessel again, and resumed the previous operation.

It took a lot of effort for Chen Hao to purify this large basin of venom, and the purity only reached 60%, which was already the best level he could achieve.

After purifying this venom, Chen Hao did not continue, but sat in his seat blankly to reflect on what he had done wrong in the operation, or what needed to be improved.

He was originally a good thinker.

At this point, he had forgotten the stench of venom, and in the face of a large pile of venom, he was like no one.

Chen Hao didn't know that what he had done had been seen by the evil master, and there was a mirror in his room that directly saw the situation outside, and the evil master was in the room to observe Chen Hao's every move.

When he saw Chen Hao stop and think about the next step, a smile appeared on the corner of his mouth, and he didn't know what his intention was.

After a while, Chen Hao started again, this time he didn't change to a new potion, but continued to use the potion that had been purified just now.

The bottle of the purified potion was poured into the purification container again.

Chen Hao tried to purify again.

The purification process was quickly completed again, but unfortunately, the purity still did not change, still 60%.

Is 60% the peak?

No, certainly not, there are higher.

Chen Hao did not give up, and put the refined venom into the purified container again.

In this way, I tried several times in a row, and the purity still did not change.

At this time, the evil master in the room couldn't understand it, he didn't expect Chen Hao to toss this pot of venom repeatedly, he originally wanted to provide Chen Hao with a large amount of venom to practice his proficiency and feel, but when this guy was refining the first pot of venom, he spent a lot of time on it, which was completely contrary to his original plan.

After several failures, Chen Hao also began to see if his idea was correct, and he decided to do one last purification.

When the venom was poured into the purification container again, he was bottomless in his heart, but he still completed the process in his hand step by step.

The venom was purified again, and when the venom was purified, Chen Hao found that this time the venom had a new change, and his eyes were deeper.

Look at the concentration of this venom, 63%.

Yes, yes, the purity has been increased by 3 points.

Chen Hao was very happy in his heart, this time the purification proved that after the venom reached 60%, it could still be purified.

So how far can venom purification be extreme?

This is what Chen Hao is most curious about now, he just wants to touch this limit.

Because he believes that as long as he touches the limit, everything will become easier, just like an exam, if he has tried to score 100 points, let him take another 60 points, it will seem very simple.

What he's looking for now is the limit.