Kriegs
Well-Known Member
Here's a nice recipe.. uses isopropyl. Check your labels -- the stronger the alcohol, the shorter the evaporation time and better extraction power. Use a glass pie pan to evaporate and a razor blade to scrape up.
http://www.icmag.com/ic/showthread.php?t=66497
http://www.icmag.com/ic/showthread.php?t=66497