A pint wont take long at all,maybe 30-40 minutes,but this will depend on the depth of the liquid, thinner will evap quicker,,,,,i was just re-reading the previous post it said "hearing" pad,im such a goof...remember to chop not grind( the bud)..leave in freezer...plan ahead and work quickly..non bleached filters...last tip is if a fan is used dont point it at the pan,it will blow humidity/water into the eth/alcohol,colorado is notorious for having very low humidity so that works in my favor.pre wet your filters so the dry filter wont "soak " up a bunch of the oil( even if you have to use iso alcohol to do it)