Generally, Mages who used normal quality magic herbs managed to remove 75% to 85% of impurities, while the ones using high grade magic herbs could reach 90% or even 92% in exceptional cases.
It was said that these impurities would only become visible in the second phase of the making process and that they would be represented by black dots that would have to be removed.
The book said that the first step was to surround the magic herbs with spiritual energy and to reduce them to a fine powder with the help of this energy.
The Mages could choose to reduce them into powder one by one and for that they had to use a cauldron that could keep the powder of the magic herb while they took care of the others.
Once all the magic herbs had been reduced to a fine powder, the impurities would appear and the more concentrated she was the more she would be able to eliminate them, which seemed logical.
