Thanks guys! After my big harvest I went a little crazy and made flakes/powder out of everything. Got 6 different blends in ziplock baggies in the spice drawer. As for making them into powder from flakes, I used a coffee grinder which was a massive mistake on my part. The next morning I had completely forgotten and I managed to ruin an entire pot of coffee. Oh well, at least now I have a dedicated powder grinder.