What Does “Double Wall” Mean?

When we say our growlers are “Double Wall,” we mean that literally: there are two layers of stainless steel surrounding the growler, from top to bottom, separated by a vacuum-sealed layer. This creates a superior insulation that keeps the growler’s contents cold (or hot) much longer than single-layer containers can. Because there is no atmosphere, foam, or any other conductive element in the vacuum-sealed layer, temperatures cannot easily move between the growler and the environment. A hot day won’t cause your beer to get warm, and you don’t have to rush to the refrigerator as soon as your growler gets filled.