Su Xing paused when he saw this, then slapped his forehead.
"Right! The strength of the medicinal properties is related to the age of the herbs... How come I only thought of such a simple issue now?"
Su Xing felt a wave of embarrassment.
But in fact, it was not really Su Xing's fault, since he had no master to guide him in the study of alchemy, and he had to rely entirely on himself to figure things out.
The fact that he could produce elixirs of an ungraded quality was already due to his relentless efforts over dozens of years, let alone elixirs of a graded quality, which would only be harder to craft.
Having realized this, Su Xing felt more confident about crafting the Organ Refining Pill, so he continued with the simulation.
[You want to continue crafting Organ Refining Pills, but at this moment, you are out of the main ingredient, Yellow Immortal Essence. So, you took out some seeds from what Qing Yunzi left you and planted them in your Spirit Field.]
