See: Question on How To Properly Decarb Crude - #24 by cyclopath
when you bring crude up in ethanol, then get it cold, THAT is winterizing.
when you bring dry plant material up in cold ethanol, that’s a tincture, and your primary extraction. you then filter the plant material out. if you extracted cold, you left the fats IN the plant material. so you’re not filtering those out. there are way faster ways of filtering…get yourself a panda.