Agreed. Distillation removes most _kinds_ of byproducts, but leaves some kinds nearly untouched. Eg no sugars come over, but unless really careful you get all

Agreed. Distillation removes most _kinds_ of byproducts, but leaves some kinds nearly untouched. Eg no sugars come over, but unless really careful you get all kinds of weird other alkanols, like methanol, and other volatile crap. Filtering can remove that crap, yes. I didn't know that there are yeasts that are so much more alcohol tolerant. Interesting.