While this growler may treat all liquids equal, my focus is solely on how it treats beer. I want the option of a packing a cold beer on the trail & enjoying the same quality experience as if I was sipping this beverage straight from the tap.
This howler passed my "tests", with one minor hiccup.
- Test 1: Filled the growler & left it on my back porch for 24 & 36 hours, during daytime temperatures reaching the mid-80's. No sweat formed on the outside, the beer's temperature & carbonation were not diminished.
- Test 2: Packed the filled howler & hiked 2 days. No sweat formed on the outside, the beer's temp. & carbonation were perfect for the first day. The temp. remained fine on the 2nd day, but the carbonation decreased.
That's the hiccup - it's no design flaw, just simple science. Once the volume of liquid was decreased from drinking after the first day, there was more room inside the growler for gas to occupy, allowing carbonation to escape from the beer. Still, that 2nd afternoon, this growler allowed me to enjoy a fine scotch ale in a beautiful setting.