from what i know, you get alot of weed (oz min.) then you use a box-sifterwith really small mesh screen (box-sifter is kinda like the thing speople used to use in the gold digger days, it's 4 peices of wood that make a square, but on one side is a very small mesh screen) you lay out some pretty big paper, or do it over a glass table. grind your weed, put it in the box-sifter, and sift like fucking hell, after you stop noticing 'powder or flakes' falling out, then set that aside, scrape up all the powder with a id card or the like, put it in a cig-cellophane, get it all in a corner, then neatly fold the cellophane so the powder is seperated from the rest of the bad entirely, put a single peice of newspaper around it and tape with masking tape, roll over it with a rolling pin (or something else that will get hte job done, even an un-opened soda can will work) then stick it in the oven at like 200-250 or some shit for like 5-10 mins... i saw a video of it being done and thta's how he did it...