I use pressure barrels for my beers at the moment, which is great when I am at home and can pop to the garage for a pint, but very annoying if I am travelling out and fancy taking any of my own beer with me. After looking at a possible travelling solution I came across the idea of using Growlers. If I was to decant beer of up to 2L in to a growler direct from the PB how long will it hold it's carbonation for, these are fairly low carbonated ales. And any recommendations on a reasonably priced Growler I can purchase in the UK? Or any other ideas for making my beer portable for short amounts of time, generally an evening out, but maybe over a day or two.