how do you cut the alcohol content down in moonshine ? from 100%-40%.
you must have a lab set up if you got 100%
if you can figure out how to get water in to the vacuum that your storing your 100% you could knock it down but try not to let air in because at 100% it will evaporate
if you could make 100% pure alc it would be 200 prof so if you add 1/2 water by voc it would be 100 prof so to get 80 prof you would need about 45% alc by voc but you need to know for shure what prof alc it is to start with befor you start cut n it
First of all, If you have 100% abv or 200 proof it's chemical grade ethanol, If you take the lid off and leave it set in your shed, garage or barn for a few days it will suck the moisture right out of the air dropping it to 96%abv. Past that point you should not have the stuff, there is no use for it other than dragster fuel.
If you have 100% alcohol by volume and you want 40%, just add 60% distilled water
If you have 100% by volume or 200 proof ethanol and don't have it stored in an air tight glass container some will evaporate but it will also absorb water or moisture right out of the air and left open long enough it will dilute itself to 96.5 % by volume making azo alcohol.