If land-dwellers wanted to create a sterile environment, the resources consumed would be staggering.
But for witches, creating a sterile environment was remarkably simple.
First came an airtight chamber with a pure oxygen circulation system. This was essential, the foundation. Witches also had other materials capable of isolating an airtight environment, but they were expensive, so making a small, triple-layered wooden airtight chamber was best.
Then came a disinfection passageway, to prevent the alchemists from bringing bacteria inside.
Finally, there was a disinfectant spray. Its main component was pure ice water; after being infused with disinfecting magical factors, the disinfectant it sprayed was not only odorless, but even the moisture it carried was barely any different from the air—almost like a mist of water formed from dry ice, only with even lower humidity.
Sometimes, for the sake of convenience, land-dwelling scientists also came to Sky Island to rent witches' alchemy workshops for scientific research. This was one of alchemists' sources of income!
Land-dwelling researchers, archaeologists, historians, and the like all received extremely generous subsidies, roughly comparable to those of A2 witches, along with funding for all manner of projects. This meant that these scholars could afford to hire witches to help with their work. In alchemy workshops, it was perfectly normal for alchemist witches, as experienced operators, to be hired.
Only after patiently disinfecting herself a second time did Jiang Han begin taking materials out of the material box.
"Disinfection beforehand must be done properly. Once preventive measures and preparations are in place, alchemy is a harmless line of work." She handled the materials with utmost care. Since they were not biomimetic materials, she had to process them before she could make the solvent.
She pulled a non-material material knife from her toolkit, meant for cutting materials.
This was a