Making Dry Ice Hash First
will significantly reduce the expense for ethanol. Use a food grade bucket with a lid, add cannabis and chunks of dry-ice. Let sit for 10 minutes, then shake for 10 minutes. Let it sit and then shake. Let it sit and then open it and check the consistency.
The dry ice chunks will freeze the material, allowing the shaking to break down the cannabis physically with the chunks of dry-ice. Once the cannabis is reduced to a powder (you'll need about 1/3rd the normal amount of ethanol) you can add ethanol and do a quick 30 second wash.
Since the plant is powdered, everything is extracted. Since the extraction is quick, less wax is pulled from the plant material and quality is increased. :)
Cool Stuff! :D
RE: How to make Medical Cannabis Oil