this method is to get most of the cut of of your coke that you buy off the streets it works well me and my friends usally buy a half oz of cocaine from are dealer and use this method all the time usally get back around 10grams of awsome coke from 14grams useing this extraction. Take a highball glass and fill it about an inch with straight acetone. Pour your entire bag of blow into the glass with the acetone. Cocaine is insoluble in acetone, but most undesirable cuts are soluble and will desolve immediately, so don't worry about losing any cocaine. Stir the glass with the mix of acetone and cocaine until everything is desolved (except for the cocaine, of course!). Take another taller glass and place a funnel over the top. Place a coffee filter paper into the funnel. One more time, stir your other glass with the mix of acetone and cocaine and pour the entire contents into the filter paper. All of the acetone and dissolved cuts will fall thru the filter paper leaving nothing but the cocaine behind in the filter paper and the bottom of the original glass. Scrap any remaining cocaine left behind in the original glass and place it in the filter paper. One more time, run a little more acetone over the filter paper to remove any remaining cuts. Be patient and let all of the acetone run thru the filter paper until it is done. After all of the acetone has drained thru, remove the filter paper containing the nearly pure cocaine and put it away somewhere with low humidity to dry. The cocaine will easily fall of of the filter paper and the rest can easily be scraped of with a sharp knife when it becomes dry. Let the cocaine dry to remove any remaining acetone (about an hour or so) and see what you've got! It will be very white in color and very pearlescent. This will be very pure at this point and very good! got this method of another forum plz try and enjoy!!!!