For Ye Ling, concocting the Cold Pill was very easy.
Of course, the name "Cold Pill" was something Ye Ling came up with himself.
If Ye Ling had his Nine Tribulation Immortal Emperor's cultivation from his previous life, making something like Cold Pills would be as simple as producing a hundred in one second.
Even now, at the early stage of Houtian, he could still concoct one or two furnaces in an hour,
With one furnace, according to Ye Ling's alchemy technique, there would be at least about ten pills.
Ye Ling took out the Pill Furnace and placed the traditional Chinese medicines inside, immediately stimulating his True Qi.
This True Qi was actually fiery red, like flames, and instantly turned the Pill Furnace red-hot.
However, Ye Ling's control of the heat was excellent; the flames did not melt the Pill Furnace but were only melting the medicines inside.
As time slowly passed, the traditional medicines began to turn into liquid.