Ok, so this is an old thread, but I joined this site just to post this. Everyone on here has been correct (except ISO reclaim IS worth saving.) The process you want to use has almost been completely covered. If you're trying to smoke or consume your reclaim, settle for nothing less than 91% ISO (even that's a little low.) If you're just dumping the mixture, 91% will dissolve everything perfectly fine.
Begin by placing a Pyrex pan (preferably the one you use to blast into) on top of a skillet or large pot that has a good amount of water in it. The idea is that if the water was boiling, it wouldn't be hitting the bottom of the Pyrex pan, just steaming directly on to the bottom of the pan. Put a medium high heat and walk away to allow time boil as you clean your rig.
Now I have a small rig, so I can just pour a small amount into it and block the hole for the nail and shake it up, works perfectly. I also use a domeless TI, so I don't have to mess with extra glass. If you have a dome or any other small pieces you can't wash inside the piece itself, or if your piece is too complicated to clean out of a baggie, put these into the corner of SEPERATE plastic bags (as small a bag as the piece will fit in.) Now pour as little ISO as you can possibly use (I'll explain briefly) and seal that thing tight and shake like crazy, making sure to keep the piece in the corner. Once the piece is clean, remove it while keeping the mix in the corner you used; set this aside in this position for each bag. A simple water wash and lint less towel wipe down to each piece will clean them sufficiently.
Ok, so we have baggies ( and possibly a rig, if small enough) full of ISO/oil mix. (FYI: You can clean out your oil dishes with this ISO/oil mix and dissolve the oil residue off of that into it. Use as little as possible and don't use fresh ISO!!! Use the mix you already have.) Now here is the part where I do something differently. Remember that pot of water with the Pyrex pan? By now the pan should be hot. We're going to pour that mix into the hot pan while its still above the boiling water to purge it. This is the exact purging method I use after I've blasted my flowers and all the butane has dissipated into the air. It's a very natural, smooth purge, and your oil pan is kept a perfect distance away from open flame, even if you used a skillet.
If you're OCD like me, then you'll hate scraping oil of the edges of your Pyrex. Well for this, I have a solution for you. The reason we got the pan so hot in the first place is because when you pour that mix into the pan, the edges of it are immediately going to start evaporating due to the heat, leaving behind that gooey goodness. If you pour small amounts of the mix in and roll it around the middle while keeping it above the water (wear oven mitts!!!), it will evaporate very quickly, while keeping the oil in the middle where it's easy to scrape! Just slowly add small pools of mix as the old pools fully evaporate (for the baggies, I discovered that cutting the corner of the bag that you didn't shake the mix in and then tipping the mix to that side of the bag controls the flow easier.)
The reason I told you to use as little ISO as possible and to use the already mixed ISO to clean your dish is because you want this mix to be as concentrated as possible. The more ISO used, the more taste you'll lose from the final product, and it'll take even longer to make that finished product. Once you have finished all the mix, turn everything off and wipe the bottom of your Pyrex down on a towel (careful this pan is HOT!) Allow this pan to cool to room temp (or cool enough to touch comfortably.)
You're now ready to scrape and enjoy that still potent goo! Now I always put a solid, bright white towel on top of your lap under the Pyrex when I scrape, whether I've just blasted it reclaimed. This allows you to completely see all of that oil so you don't miss a drop of hard work.
Any questions, please reply, I'm always glad to answer them. I hope this helps, and I hope it gets a few people to try my purging method if they haven't. It's noob and common sense, but it's very nice and good for people who do t have time to vacuum purge.
Happy medicating people!!!