I just wrote a detailed explanation of how I make it below. https://www.thcfarmer.com/community/threads/full-extract-cannabis-oil-or-rick-simpson-oil.77473/ I use ISO, 4 pint mason jars, and time. I also filter it a lot, starting with stainless, fine filters to unbleached coffee filters. I filter it at least 5 times. It gets rid of all the thick, nasty, plant matter. I get a consistent, dark green, oil. I was using 190 proof grain alcohol but 99% is a lot easier to get, especially in bulk. There is a consumer limit on the 190 proof. I use heat to evaporate the alcohol then infuse the oil into different products depending on what I use. Naptha is horrible so is denatured alcohol. They both work as a solvent but they both leave a horrible taste and residue. Not that vaporized chlorophyll tastes great or anything but I'd rather it tastes like plant than chemical. If I'm not infusing it, I leave it on the heat pad just stir it until it doesn't bubble anymore. You don't have to add water because the alcohol already has water in it, that will evaporate over 2 days on heat. Just stir it. I bought a digital heat pad, which really helps dial in the oil for my tinctures, capsules, and salves. Heat Pad - eBay The pictures are some of my oil infused with vegetable glycerin. I put the infused vegetable glycerin in capsules to ingest every 4-6 hours or I use it in edibles, tea, and e-liquid.