https://www.homebrewhappyhour.com/ways-to-prevent-suckback-what-is-beer-gas-and-how-to-use-it-what-would-happen-if-i-did-open-fermentation-ep-345/
Ways to Prevent Suckback, What is Beer Gas and How to Use It, & What Would Happen if I Did Open Fermentation? – Ep. 345