Master Chen is an expert, so he surely knows that these spirit herbs and semi-spirit herbs contain the spiritual energy of heaven and earth. Ordinary fire simply cannot refine them, unless one uses the fire from the earth's core or is a practitioner of fire-based arts.
About one-fifth of the military's supply of low-grade medicinal pills comes from the Zhengqi Sect.
"Although we don't know if this 'Medicine God' Zhang practices fire arts, his personal ability is beyond doubt. He is a top contender for the championship in this Traditional Chinese Medicine Conference."
Chapter 207