If you're like us, many of your favorite microbrews aren't sold in bottles. When you bring home that limited-release double IPA from your favorite brewpub, chances are it comes home in a glass growler. However, we know glass growlers have their drawbacks: They go flat once they're opened, they let in air, which spoils your beer, and they don't travel well.
Our mission at GrowlerWerks is to make a growler that works. After testing all the options available, we realized that nobody had cracked the code on a pressurized growler that works. So we designed the uKeg: It’s easy to use, with an automatic regulator cap that holds CO2 inside, instead of externally, variable carbonation from zero (off) up to 15 psi, and a dispensing tap so beer can be easily served without removing the cap. It also has a liquid sight glass, an ergonomic handle, and it’s easy to clean.
Using the VPR Cap is as easy as using a seltzer bottle or refillable whipped cream dispenser. It's patented feature is variable pressure regulation -- that can be set from zero (off) up to 15psi. On the uKeg, the cap automatically regulates pressure to continuously maintain your desired carbonation level. You don't need to manually refill or use separate filling devices. One CO2 cartridge keeps one uKeg growler full of beer.