what you need: ---2 pyrex pans, one small enough to fit comfortably in the other. ---glass extraction tube ask any glassblower to make one, theyll know what it is and there only around 30$ if you cannot find a glass on to buy, then get a stainless steel turkey baster from Bed bath beyond, or wal-mart - vector butane (need the attachment in the cap) use whatever attachment fits ur tube(or any other butane that passes the mirror test(spray tane on mirror, let evaporate, if theres a stinky white film the tanes not safe to blow errl with) ---10 grams to a half oz of good weed or trim(or enough to pack the tube so there isnt ANY AIR POCKETS but not hard enough to where you get a blowback.(just blow through and makes sure its not so tight the air cant escape) ---coffee filter(un-bleached work well) double up and (triple up if your blasting hash or kief) --rubber band --bandanna or towel --thermometer(laser thermometers work extremely well for this) start by filling tube with weed(like i said before tight enough for no air pockets, but not so tight you cant blow through it) cover big end of tube with coffee filters and fixate with rubber band once weed is in place next put a pan of water on the stove on close to high and watch it closely, when it reaches 160 degrees get a thermos, and fill it with the water (the thermos is needed so the water stays hot longer, less trips inside etc) NOW GO OUTSIDE (I CANT STRESS THIS ENOUGH, BE IN A WELL VENTILATED AREA, WITH NO MAJOR HEAT OR FLAME ETC SHIT IS MAD FLAMMABLE) put enough water to coat bottom of the second pyrex in the bigger one, remember water is hot. put smaller pyrex inside bigger one that now has water in it next put towel or bandanna around the tube because it gets fucking cold and you can get frostbite hold tube coffee filter side down 3 or 4 inches above pyrex plate(close enough so it doesnt splatter everywhere, and far away enough the filter doesnt touch the bottom) put attachment in top of tube(some butane doesnt need a attachment, just if it comes with them then use them( they're usually inside the cap) put butane tip in attachment and slowly put pressure on it so it releases butane until you see the liquid hit the plate, then stop applying pressure for exacly 3-7 seconds do this repeatedly until the can is gone, or the liquid coming out is not sticky any more, and clear try to move the can around in your hand so the spray gets all the nugget not just the middle(again do this only during the times ur blasting) at this point when ur done blasting, let it sit in the water until the waters cooled, then replace the water again with hot once more(see now u know why u have the thermos, readily available hot water) after about 15 more minutes in the second hot water purge or until the "action" stops take it out and LET IT SIT OUT IN THE OPEN(no freezer, no sunlight, just open air) FOR ABOUT 48-56 HOURS and then then u have about *25% weight shatter.(if you blasted a half oz, you should get at least 3 grams) if your too impatient to wait overnight, you can wait til its stable at room temp and just whip it up a bunch with a dabber. small whipping motions itll just be buddar instead of shatter BY THE WAY SHATTER IS JUST MORE POTENT, AND CLEAN BHO, BUDDAR IS JUST EASIER AND LESS TIME CONSUMING, the terpenes are dying at a rapid rate and theres still tane or moisture in it so ya there ya go, this is my personal recipe for BHO I hope it helps all of you errl heads make a safe medication dab on!