So my first go at making some QWISO just to try and get a method down really. I have a Solo travel tube filled with ISO oil (70%) that I use to soak my Solo stems/GonG's in. I have had the same bit of ISO for months now and finally got round to getting some unbleached coffee filters, pyrex dish, razer blades etc.. So after pouring the iso through the coffee filter to keep all the bits of plant crap out the iso in the pyrex dish is turning a funny chocolate colour? Picture shows better but its my guess the ISO has stripped some of the coffee filter stuff off? It looks the same colour if that makes sense. Is this possible? Have I fucked up somewhere? Should I have used 2 filters or something? Has the 20% water content fucked it all and should I just ditch or is there anything salvagable? This dish is sitting on the balcony outside, is that cool for it to evaporate off? I have a half full mason jar of ABV and a 2 liter bottle of 99.9% ISO that I want to make oil with eventually but wanted to test this small batch first.....any help/advice appreciated thank you.