Well, ok, the subject sounds a little pushy.

Basically, I plan on doing a lot of berry picking this season. In the area I'll have plenty of opportunity to get blueberries, raspberries, high and low bush cranberries, and I have a garden patch of strawberries.

Now, I'm not really hurting for recipie ideas, there are a ton of those here. However, a lot of them use things like concentrates or prepackaged frozen drink mixes. So the first question I have is how would I convert measurements of frozen concentrate to hand picked berries?

The second question I have is how do I make sure these things are totally clean. I don't want some fungus or mold growin' in my fermenter!