Comment: Will it react chemically like sugar?

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Will it react chemically like sugar?

I actually bought stevia, but don't know how to use it. If I want to make bread (less likely now than when I bought it, I am giving up wheat) will the yeast rise with just stevia? In baking, will cookies and such have that bitter aftertaste?
For those interested, I put a stevia plant in my aquaponics system and it went berserk. I think you could grow all you needed, which leads me to my next question...
Any idea how to use it in its natural form, or how to refine it to a usable form?
I realize I am being lazy, I could go google that stuff, but I'd rather hear personal experience if it is available.

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