It is easier to “un denature” some readily available versions of denatured alcohol than it is to ferment and distill it.
It still (no, not a pun) needs to be distilled, but you avoid the messy and expensive fermentation process, and the distillation goes much more quickly and cheaply because there is no water in the mixture.
A five gallon can of denatured alcohol can produce ten gallons of good vodka.
But man is it ever illegal......
Explain that sentence please. I'm not following you.
How do you remove the poisoning agents from the denatured alky?