So I'm wanting to inject heroin for the first time. I've already considered the risks please don't lecture me about it. 
I live in southern California and from what I hear all there is out here is black tar. Seeing as it's been handled by people before getting to me there can be all kinds of bacteria in the heroin. I understand sterilizing of the needle, skin, and spoon but how can I sterilize the black tar for injection?
Also so I don't make another thread what do stamp #'s mean?
Thanks!

I live in southern California and from what I hear all there is out here is black tar. Seeing as it's been handled by people before getting to me there can be all kinds of bacteria in the heroin. I understand sterilizing of the needle, skin, and spoon but how can I sterilize the black tar for injection?
Also so I don't make another thread what do stamp #'s mean?
Thanks!