Zhang Xiaokai sat on the stool, staring at the Bronze Alchemy Furnace.
On the square stove before him, the Suspended Embryo Cauldron was divided into three levels, upper, middle, and lower.
The middle was a sea of water made from Fire Silver, used to cool and isolate.
The upper and lower levels were refining the main pill and the secondary pill respectively.
Every furnace of elixirs had to be designed with two chambers, imitating the human heart with its two lobes. The advantage was that it allowed comparison between the main pill and the secondary pill; different temperatures produced differences in medicinal effect and characteristics. Each round of alchemy was both the refining of elixirs and the continued perfection of the formula.
When sold, the main pill and secondary pill were also divided into superior and good grades, and marked with prices matching their quality.
In Golden Elixir Nation, these records would be gathered together, sent by the pill workshop to the Pill Department for comprehensive verification, and used to further improve the formulas for existing elixirs.
Zhang Xiaokai lowered his gaze and looked toward the base at the bottom.
The magic energy brought by the Magic Bottle continuously supplied the Fire Element Crystal Structure inside the stove, allowing the temperature to remain stable.
In the past, setting a fixed temperature had been troublesome. Even firewood and coal of the same weight could cause no small difficulty because of unpredictable changes in the weather, as well as the different burn rates brought by different wood species and ages.
For a very long time, alchemy had placed very high demands on location, alchemy furnace, fuel, and the person performing it. The seasons and times when the furnace could be opened each year were fixed.
Now, there was no need to worry