Personalized Goblet glass bottle used to transport draft beer. They are commonly sold at breweries and brewpubs as a means to sell take-out craft beer.
Both ecologically- and economically- friendly, growlers are filled right from the tap and topped with a twist-cap that seals in all that hoppy goodness.
There's new technology out there aimed at extending the life of growler beer and it is called "counter-pressure".
Similar to how beer is bottled on a bottling line but on a smaller scale, counter-pressure works by preventing oxygen from entering a growler as it's filled. Once the beer starts flowing, the CO2 doesn’t escape and the oxygen stays out. When the growler is finally capped, it’s in a relatively oxygen-free environment. The end result is a jug of beer that can sometimes last several weeks, a huge improvement over the few days recommended for growlers filled via tube.
Specifications for Growler - BIERSIPHON 1L