I'm not sure if "resin" is the right term when you're talking about heroin
A lot of people tell SWIM
to switch from using a bic pen to using a straw of foil, so you can later unroll it and smoke whats inside.
Well, SWIMs been using a CLEAR bic pen every time he smokes anyways, and he's seen so much stuff build up inside it that it was pretty much impossible to see through it on most parts of the pen.
Its been about a month of smoking out of that same pen for it to turn that black, but it'll probably be faster for other people since SWIM and his girlfriend usually only split between .2 and .4 every day.
Today SWIM put a drop of really hot water in his super resinated pen and shook it around for about 30 seconds. he poured the water onto a spoon and it was VERY VERY black.
He snorted that water and it was AMAZING. SWIM still feels soooo good off of it.
So I guess the point of this post is just to let people know... Don't knock the bic pen as a straw if you smoke. Whats left over inside can still be very valuable.
Use a clear pen instead of a white one so you can watch it build up. Also, if you don't like snorting
it, you can pour the very black water onto a piece of foil and use a hair dryer to evaporate the water and it leaves a nice kind of cookie shaped piece of black on the foil you can smoke.
(though swim prefers snorting it)