Disclaimer: I am NOT an expert at this. However, I am rather skilled in the kitchen (and other rooms, but this thread is not about that...), and I have worked with herbs, tinctures, and extractions for many years. What I wanted to make: I have a VIP2 vapor pen, which is for vaping "oils". I wanted a custom tincture that would work with this vape, and that would have the medical effects that I want - for me, that would be relief from hot flashes, and stress, while at work/away from home. I read Vitolo's link for instructions on tincture, and I went over to ICMAG.com and looked at their recipes. I think there was one on some other sites. So, being a confirmed DIY-er, I took off on my own. How I did it: I got a quarter of Chocolate Chunk, and used right about 7 grams. Ground it up really fine in a blade-style coffee grinder. I would probably just chop it up with a french knife next time. I put the ground herb in a pint mason jar, and then poured in Glycerin - about a cup (8 fluid ounces). I also added some flavor: my Daytime formula, I threw a fresh mint leaf into it. For my Nighttime formula, I put a bit of cinnamon stick in it. I got out my crockpot, put a silicon hotpad in the bottom, put a few inches of water in it (preheated), and set the jars in there, with lids on loosely. My crock is a bit on the hotter side, so I kept it on low (a simmer), with the lid slightly ajar, overnight. At least 12 hours. Took the jars out, TIGHTENED THE LIDS, and shook them like crazy. Put them in my cupboard (dark), and tried to remember to shake them daily. Once each week, I repeated the crockpot treatment - loosened the lids, and simmered them overnight. At four weeks, after the simmering, while still warm, I poured the contents of the jar through a gold coffee filter (cone style), over a bowl. I hung the filter by its handle and an S hook, from a cupboard door handle. I left it to drip all day. Yield: I filled two 1-oz bottles, and a 2-oz bottle.* ***** I immediately put some in one of my VIP2 tanks, and took it along on a trip... our son was with us, and he took one hit off it, and said it hit him really hard - I had vaped before leaving, so it just kept me where I needed to be. ***** *I still have the mass of stuff in a jar. I could probably squeeze more stuff out (guessing another ounce or two), and I think my hubby will probably dump some vodka or everclear in there, and add it to his everclear jar of stuff. ****** I plan to try another batch, using ABV, for general pain/relaxation.