A local brewery here in PA (Forest & Main) that pre-COVID normally had several cask conditioned beers offered at any given time at their pub, announced they are going to release a Dark Mild in a 5L bag in a box package for to-go sales. Similar to boxed wine, so no oxygen going back into the beer. They said they were inspired by Machine House Brewery in Seattle. https://www.instagram.com/p/B-qb9lTgghl/?igshid=18w8cycdhilm Not sure if other breweries as well have done this before. Anyone have beer in this format before? How long did it hold up?