Hey there 4runner,
Welcome to the bug...err..club
Hunting ginseng certainly gets under your skin and becomes a life-long bug for most of us.
We've discussed drying elsewhere in the past day or so, so I\"m sure you'll find your answers there. First and foremost, never use a brush on ginseng. Only wash off the surface/loose dirt and leave the dirt in the rings as that is desirable.
There are pictures and instructions around the web, but I'm not able to link them from this forum.