1 Teelöffel Amphetamin wie viel Gramm (gestrichen)?

Can’t be said. The density data I gave you in a previous answer related to pure amphetamine. But what one gets on the black market is never pure amphetamine (cf. Drugchecking). Even with a fine scale, precise dosing is not possible if you don’t know how pure the stuff is.

This has the disadvantage that one cannot conclude from the experiences with the last stuff how the new stuff works. Even if it’s from the same dealer. If you want to take such a thing, you always have to sweetheart.