When you say raw herbs do you mean bulk, dry herbs? Dry herbs can be very effective if you’re talking about something like Nettle leaf or Chamomile or Ginger. But if you’re talking about herbs that lose activity when dried, like Fresh Oat or Scullcap or Night Blooming Cereus or Corn Silk, then no, that’s not a good idea. The other issue is that dry herbs are relatively mild and fine as tonics but if you’re treating something more serious, you’ll need something stronger in many cases than a dried herb. Lastly, of course, many herbs don’t taste very good, so patient compliance is very poor if an herb doesn’t taste good. As for how to figure out how much and in what other form to use them, it depends from herb to herb. We will be learning almost 300 herbs where you’ll have all the info on the tea dose, tincture dose and other forms, again, depending upon the herb.