I tried this with 74g of vape leavings and 2 sticks of butter approx- 227g.

Since 74g is actually quite a lot I had to use a large double boiler. I just put a trivet in a pot and covered it with water. Then placed the pot with the h2o saturated VL and melted butter and simmered. Stir. Stir. Stir every time I walked by.

Which was easy as I was making gumbo too...

I did four "washings" and ran the resulting tea through a French-press each time. Each was chilled and butter lifted away. The first run returned 70g of dark-olive green butter. The next three progressively less but with the same green hue.

I've ended up with 128g of butter so far. This morning the VL went back into the boiler but was boiled with more water to try and extract the remainder of the fat. Chilling now in an ice-bath. Looks like I'll get more out.

I tried about a 1/2 tsp licked off my fingers last night. Washed it down with some home-brewed Pale Ale. Wow. Even though I was already "vaped" I definitely felt effects from this. Despite the deep green color the butter is fairly neutral in flavor with a pleasant "nuttiness" present...

This is a real boon to those that vape. Tried smoking the crumbs before and it is a disgusting experience. Had heard of cannabutter but was unsure about it being very clean tasting because of the nastiness of the VL. LOL Now I can extract the remaining 15% or so out and eliminate waste.

Probably won't cook with the butter as there are concerns about exposing my precious THC to 300+ temps. Ideas on this?

Thanks guys! I'm gonna pass it on to my friends who vape...