I left it evaporating for about 48h, until it was completely dry. I then put it in a heat mat for a while (~45' at 50C), until it was liquid again and scraped it into a pile in the middle of the pyrex and there I whipped it multiple times with a needle. Do you think that's enough purging or should I heat it more? I took a couple of dabs and there was no alcohol taste (I'm fairly new to dabbing so it still is rough for me, I coughed like there was no tomorrow), the effects were potent too, I regretted doing it in the morning.
Poorly purged ethanol extracts, will have a sweet taste.
If you are new to dabbing, might I suggest smaller dabs, don't inhale deeply and hold on to the vapor, cause it expands a bunch.