You say potato, I say vodka. Grapes apples biueberries, wine to my ears.
A spirit lamp but the alcohol has to be Everclear. Just little traces of chemical they put in the denatured alcohol can get into the air you inhale. They sell boat alcohol for stoves but thats none to good.
We make our own wine and that can be distilled down to brandy. IVe distilled maple sap and it took forever. It puts so much vapor into the air you do it outside. A farm with a maple sap house included would be a good spot. Wood to burn and sap for distilling, Mash for the hog. Alcohol to power the tractor.