Can you make hash out of weed that was smoked in a vaporizer? I have never used a vaporizer before so i really have no idea what's left afterwards, however i am considering buying one, also wondering what the difference between smoking weed in a pipe as apposed to a vaporizer tastes like.

the vaporizer vaporizes the tricromes on the buds. there for making hash from it is not possible. I know people that use it to cook with.

That's kinda what i thought, another dumb question how do you know when the weed has been used up? Because smoking it in a pipe it eventually becomes ash. I would assume you just can't get another hit off it. I am thinking there is no ash from a vaporizer right or wrong?

just smoke it

in a vaporizer your weed will turn brown after its finished, it wont burn but you can tell its done when youre getting ass tasting hits from the vaporizer. I have heard of people spraying the buds lightly with water to help vaporize the trichromes. Make sure you break up the buds before putting it in the vaporizer.

whats left after smoking is useless.

you can but not out of the burn weed! it builds up in the glass on glass vap bowl. its like a kieff goo of sum sort. it bomb. after 8 months of never scrapping you get like a 2-3 gram hash nug ball!