Page 19 - Craft of Whiskey Distilling

AmErICAn DIstIllInG InstItutE | 5
other non-neutral spirits, for which they are very widely used commercially. However, the whiskey still is not suitable for the production of vodka, gin, or other spirits derived from neutral alcohol, which requires a high-separation still capable of producing pure ethanol.
This brings us to the high-separation still design called a “column still” or a “fractionat- ing still.” A fractionating still is used to produce pure ethanol by fractional distillation for vodka and gin, or for pharmaceutical and laboratory use.
[Figure 1] this is a table and graph of boiling points for ethanol/water mixtures by volume. (Hint— copy this and paste it onto your still).