The warmer it is, the more moisture is purged, but this only applies to an extent. Less moisture = harder oil in my (limited) experience... The way I did my ABV ISO, I was able to scrap it off the plate, then put it into the container and let it sit on top of my mini-fridge to purge the rest of the moisture. I'm kinda bummed I don't have any left to get, my batch came out indica as fuck and feels like I took a pill of Vicodin (a 5-500 hydrocodone/acetaminophen pill), but with the tolerance I had, the "stone" only lasted around 45-60 minutes.) Still, I got enough to last me around 10 days, from stuff that I wouldn't vape otherwise.
I actually found some all-natural peanut butter that I mixed ABV into. I took it around 9.30pm. I estimate that I took around 1g of ABV total, as well as .4 of ABV. I woke up stoned, almost 11 hours later, and ate the most I've had for breakfast in at least 3 weeks. I ate so much, that my mom actually asked me (later) if I had medicated before breakfast. I'm hovering around 129lb, which for me is quite a healthy weight.