During this process, Zuo Feng seemed to be able to pick it up easily, but in a house not far from Zuo Feng, Yao Xun, who was sitting cross-legged, suddenly opened his eyes. At this time, an extremely soft joy flashed in his eyes, and his face was filled with relief.

Zuo Feng's every move was under his observation. When Zuo Feng took out these medicinal materials, he had guessed what Zuo Feng wanted to do with his own superb refining skills. The refining medicine was simply made according to the prescription, which was almost all summarized by people from previous people after countless attempts. Later generations do not need to have too much understanding, just follow the action completely.

The difficulty of improving Yiqianya Powder is probably not much easier than recreating a prescription. Most of the medicinal materials in front of Zuo Feng are made of low-level detoxification drugs, but when Zuo Feng added the foxtail flower and the crest, the efficacy of the medicine itself will produce a qualitative leap. Although it cannot reach the quality of the medicine liquid, it is more than one level higher than the original medicine.

After Zuo Feng selected the medicinal materials, he began to refine them because he didn't know whether they would have too much effect. He probably would only be clear after refining them, so he was not prepared to waste time and start refining them directly.

Zuo Feng first started to refine according to his own ideas. He adjusted the steps of refining Jiedu Powder slightly, but Zuo Feng did not forget the original coordination of yin and yang and the interaction between medicinal properties. Although it was also refining Pharmaceutical Powder, Zuo Feng was careful not to be distracted this time, and his attention was unprecedentedly concentrated, and he never let go of any subtle changes in the medicine furnace.

But not long after time, a low muffled sound came from the medicine furnace, and then a faint black smoke spread out from the top and bottom of the medicine furnace. The failure of refining medicine was common to Zuo Feng, especially the failure of refining this time was already within his expectations.

Zuo Feng lowered his head and pondered for a moment, then adjusted the several medicinal herbs in front of him. The so-called adjustment was actually that he slightly changed the order of refining. According to his original estimate, the newly added foxtail flower and curly clover are both cold-like, and some of the other medicinal herbs are hot, most of them are close to neutral.

So he chose to refine the newly added foxtail flower and curly clover first, and then refine it in sequence in the original order, so that the medicinal liquid extracted from all the medicinal materials should be mixed smoothly. However, after actual operation, Zuo Feng found that his original judgment was still deviated.

That is, the two medicinal materials with not too strong medicinal properties, foxtail flower and crest have changed their properties after the fusion. He originally regarded the characteristics of these two medicinal materials, but ignored the changes in this characteristic, and other medicinal materials must also be adjusted accordingly.

After thinking for a moment, Zuo Feng reconsidered a sequence of extraction and fusion. The subsequent refining made Zuo Feng feel a headache because after repeated adjustments, the noise still caused a disturbing sound. Although these medicinal herbs are not precious, they are very precious to Zuo Feng now.

Because he is trapped here now and dares not leave at all, he can only wait until he leaves Luancheng and goes to a safe place where no one knows him. So when Zuo Feng spent nearly half of the medicinal materials, he had to stop and think carefully.
Chapter completed!