22:24 assuming that water oxygenation is an actual factor when brewing tea, once the water boiled and is cooled down, it'd be possible to aerate it 22:24 I wonder if there exist brewing vessels with fine bubble aeration :) 22:25 it'd not be hard to create 22:28 apparently oxygen-saturated water expunges out some noxious gasses such as carbon dioxide, methane or hydrogen sulfide 22:28 which might be a factor in water quality possibly 22:29 not sure if it also helps against chlorine, but possibly; refrigerating water helps, and the colder water becomes the better its oxygen solubility 22:30 "One of the drawbacks to fine bubble aeration is that the membranes of ceramic diffusers can sometimes clog and must be cleaned in order to keep them working at their optimum efficiency."