WHO recommends between 70%-80%. I'd just keep the everclear 151 as is, since as you recognize already is at 75%. (From what I understand, too high doesn't des

WHO recommends between 70%-80%. I'd just keep the everclear 151 as is, since as you recognize already is at 75%. (From what I understand, too high doesn't destroy the rna, and too low can't penetrate the lipid layer).