We asked the industry’s leading growler manufacturers for test units, filled each with beer straight from the tap at 42.5° F (5.8° C), let them sit out overnight at room temperature (not refrigerated), and measured them roughly 24 hours later to see just how well their insulating properties performed. In addition, we inspected carbonation levels on the beer via sight and taste and rated each on a scale from low to high. We also tested two growlers with built-in draft pouring capability and one glass growler with a neoprene sleeve, for science (of course).
Smoky Mountain Growlers
64 oz » $59.99
40 oz » $44.99
32 oz » $38.99
Replacement Lid » $9.99
Twisted Tumbler » $25.99–41.99
Ending Temperature: 49.4°F/9.7°C
Carbonation: High
Notes: The Smoky Mountain growler’s copper color is on-trend, and the glossy surface is easy to clean. In terms of performance, it was in acceptable range on temperature and held a big and vibrant carbonation. The D-ring on the lid was a great touch, making it easy to carry and setting it apart from the pack.