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Backpacker Magazine – Online Exclusive
No one takes a to-go cup on the trail. Unless it's one of these hardy thermoses or hot/cold bottles.
beefy cold-weather drink machine
Primus C&H Vacuum Bottle
If a rough-and-tumble exterior is what you need this Primus line fits the bill. The bottles look like bulky spray paint cans and have a black, sanded-down sandpaper exterior which is great for gripping in gloves said one tester. They (there are five size options from .25 liter to 1L) have a narrow mouth and two cap options—one for pouring and one for heat retention. The pouring cap does need diligent cleaning to stay stink-free and one tester was able to (unintentionally) unscrew the pouring lid into two separate parts. These caps fit securely under an included screw-on cup/top making these great bottles for sharing.
We conducted an impromptu heat retention test on one snowy hike in the Colorado Flatirons using an everyday candy thermometer as our measuring stick: two different sizes of the Primus bottles (.75L and .25L) each saw a 20 degree temperature drop after an hour and fifteen minutes on a 27 degree F day. The .25L dropped from a piping 182° to a still piping 159°. The .75L bottle dropped from 124° to 104°. Only one other bottle in our test had better heat retention, and that model was so lead heavy that it didn't make the final cut. Prices are also very reasonable at $18 - $32.
0.25L, 0.35L, 0.50L, 0.75L, 1L
$18, $18, $20, $27, $32
.75L bottle weighs 1lb 0.4oz
One color option, black