Hi all, I've been running iso for a few years now, and wanted a little advice on my method. I'm going to be running an ounce of kief. Prep: it will be frozen in a jar for a few days before hand. I purchase 91 % iso, then oversaturate the 9% that is water with nacl (table salt), then filter out the salt, and the water which is attached to the salt, this isopropyl is frozen along with the kief. Processing: cover the kief in it's still frozen far with iso, gently stir for about 15 second, then I pour the solution into my tube, with 4 unbleached coffee filters on the other end, attach bike pump, I blast this into a coffee strainer, which also has 4 unbleached coffee filters resting in it, under this is another jar. I recollect what is caught in each set of filters, and re wash a second and third time, I put this all together, as the chlorophyll and unwanted byproducts are taken out by the next step. 'Polishing': I then measure how much solution of iso and kief/thc i have, and make it 3.5% water by volume, this water will attract lipids, cholorphyll, and other unwanted byproducts, without drawing thc from my iso. After letting the water collect unwanted materials for a little, I freeze the qwiso and water solution, and simply wait to remove the water, and unwanted materials. refiltering: I then repeat the processing steps, using the bike pump, tube and strainer with 6 coffee filters on each, while the solution is still frozen. Now, I like my method up to here, and historically, it has worked great, but I'm looking to create a more solid hash, something like shatter rather than oil. I typically wait and whip my product once all the iso has evaporated. What I am thinking it take a electric skillet, set it to 115*F or so, with a fan for quicker evap and let the solution drip onto this slowly, once everything has fallen through the filters, wash with a small amount of cold iso, let that evaporate. Cover the tray, freeze it, collect the hash, put it on parchment paper, then put it back on the pyrex dish on the skillet at 115*F. Will this be enough to get a shatter consistency if I whip, heat and freeze repeatedly. Or would I need to get a vacuum to get iso to shatter?