I"m moving out of the home I've lived in since 1956, and discovered this dogma...probably received during indoctrination into some hocus-pocus Catholic sacrament. It could be over 50yrs old. Beings its fermented that long, I"m hoping it will knock the shit out of my dandelions. At least then you could say it was good for something.
Most holy water is only good through one year. The Holy Water Bottlers Association clearly states on their web page.........Holy Water is only good for one year from the time of bottling due to the eventual breakdown of molecular holy molecules that vibrate at a higher frequency that the regular molecules." Makes sense since the water would, like radioactivity, bleeds off its power over time.