Anyone ever used a rotary evaporator to make their hash oil? I am seriously considering looking into the legality of owning one and if it is legal, getting one. The machines, regularly used in science labs are made to evaporate solvents to recover anything in the solution and then recondense the solvent vapors into liquid form. For those playing from home, your iso, or better yet, ethanol (which is taxed like you were drinking it in most parts of the world) will now become almost everlasting! Even better, your hash making becomes significantly more automated, and safer too! They are serious lab equipment, the cheapest I have seen one able to be procured for would be around $500 on ebay, with new ones fetching $1000-$5000 quite easily. However, I'd love to hear from anyone with experience as to how it goes for our particular application?