Vacuum Insulated Stainless Steel Beer Growlers – Miir, Hydroflask

Vacuum Insulated Stainless Steel Beer Growlers

IMG_0952The ever-evolving world of water bottles is heavily weighted toward metal, vacuum insulated bottles these days. The new breed of stainless water bottles are durable, free of chemicals and they keep cold liquids colder and hot liquids hotter than any of the basic single-wall designs we’ve all been using for years. The price is weight. Although I’m unlikely to carry an insulated bottle backcountry skiing, double-walled bottles are great for general outdoor life. And the trend to offer “beer growler” size jugs (64 oz) to make your favorite local micro-brew portable – and cold – is worth applauding.

I’ve been experimenting with insulated growlers available from Miir and Hydro Flask – a couple of the top-tier options when it comes to vacuum insulated stainless steel water bottles. Both companies make a variety of bottle styles including the common 32-ounce size and increasingly popular 64-ounce growler.

There’s no question, these bottles are best at keeping liquid cold but I included hot liquid temperature comparison with a Stanley brand thermos (also a stainless, double-wall) for the sake of comparison. But, since it’s summer, it seems appropriate to focus on keeping beer at the ready for that aprés pedal or hike beverage. That’s right, you can fill these beer growlers with your favorite craft brew right out of the tap and enjoy it cold and fresh at the end of the day. We’ve got specs for the 64-ounce growler versions included here, but both Hydroflask and Miir offer 32-ounce versions, too. Here’s the details:

Miir stainless steel, vacuum insulated 64-ounce beer growler

64 oz beer growlerThe Miir bottles feature a unique flip-top lid akin to an old fashioned soda bottle. It’s a nice change from a basic screw top and, since it’s attached, you can’t lose it – always a plus in my life. The top offers a spill-proof seal and the bottle is available in a simple, stainless exterior ripe for holding your sticker collection or a few select powder coat colors. One detail that sets Miir apart is their program that donates 5% of their water bottle revenue annually to clean water projects in developing nations around the world. You can even track your donation on their website.

Weight: 30 oz (empty)

Cold: 42 F start / 8 hour later 44 F = 2 degree temp loss over 8 hours at room temp

Heat: 205 F start / 8 hours later 151 F = 54 degree temp loss over 8 hours at room temp

Shop for the Miir beer growler

Hydroflask stainless steel, vacuum insulated 64-ounce beer growler

64 oz beer growler hydroflaskThe Hydroflask growler has a real bomber feel to it. It’s a few ounces lighter than the Miir, but it’s a solid bottle that’s ready to take a beating. The screw top provides a leak proof seal and a nice loop to hold onto for transit. The wide mouth is easy to fill and makes for easy pouring, too. The growler is available in a variety of powder coat colors or simple stainless.

Weight: 27 oz (empty)

Cold: 42 F start / 8 hour later 48 F = 6 degree temp loss over 8 hours at room temp

Heat: 205 F start / 8 hours later 144 F = 61 degree temp loss over 8 hours at room temp

Shop for the Hydroflask beer growler

 

Stanley stainless steel vacuum bottle – used as a control.

Stanley beer growlerFor comparison purposes, I added a classic Stanley Vacuum bottle – aka thermos in old speak – as I was curious how the temp loss would compare. Somewhat surprisingly, the Stanley bottle did the best! While I used a product from their classic thermos line, Stanley also makes a beer growler in the same construction and classic green finish. I’m assuming that it will perform the same as the large thermos I used.

Weight: 36 oz (empty)

Cold: 42 F start / 8 hour later 44 F = 2 degree temp loss over 8 hours at room temp

Heat: 205 F start / 8 hours later 171 F = 34 degree temp loss over 8 hours at room temp


Shop for the Stanley beer growler