I know many people use it for winterization, maybe it’s the azeotrope that forms between water/heptane/ethanol that makes it good for winterization but not great for extraction in the longer term like described here:
I know many people use it for winterization, maybe it’s the azeotrope that forms between water/heptane/ethanol that makes it good for winterization but not great for extraction in the longer term like described here: