I'm wondering if it is really necessary to soak bottles for 20 minutes in PBW before sanitizing with Star San. Problem is, it takes an inordinate amount of PBW to soak 50 bottles at the same time and the stuff is just so expensive. I've been trying to save by making ten liters of it and soaking bottles, 15 at a time, but that takes so long, it's ridiculous. As long as I'm rinsing the bottles well with chlorinated tap water after drinking before storing them. Could I make a small amount of PBW, use the avinator bottle rinser to shoot it up into each bottle, let them sit a few minutes and rinse them out with water before sanitizing? I have 17 liters to bottle today.