I read it...I haven't applied the theory yet...However, I have a couple friends trying to make thier own recipe for retail, and they use beer and whiskey and have related to me that all is 'good'.

If you watch the old gardener on sunday AM's..he is always adding alchohol to growing potion's

I learned something else that goes with this query...If you want to use powder nutrients, for hydro or make an applicable spray...Mix with at least 70% alchohol and then water to make a soluble batch for hydro or foliar feeding/spraying
I have more reading to do about this, but it is said that alchohol does allow the plant to fluorish. be careful, whenever mixing chemical's...THEY COULD BLOW UP!

LW