Quinn wrote: I like to hook up the gas right away and carb as the beer is cooling to keep the keg under positive pressure. As the beer cools, a vacuum will form in the keg and suck in air, wild yeasts, molds, etc from the refrigerator if the keg isn't sealed
This is good info to consider. I hadn't thought of that before, but it make sense and I will keep it in mind now myself. Like using S style airlocks instead of 3 piece when cold crashing.
