Vacuum Bottles for Overnight

KTHERMONE-001We have experimented with thermos/vacuum bottles.  Not testing various brands – we have no special insights there – but on their use for winter camping.

If possible pre-heat the thermos with some boiling water (fill, let stand for ~5min and refill with boiling water), this makes quite a difference. With pre-heating and some protection a Thermos (brand) bottle holds the content HOT for about 12 hours (of course depending on conditions) and warm enough to be nice to drink some 18 hours. Also the bigger the better (volume / surface area) so buy a one liter model.

For overnights in winter I’ve had good luck with insulating the thermos and keeping it inside a pack to keep the wind off. You won’t burn your tongue in the morning, but it is still warm enough to satisfy.

Filled with hot water the night prior and given some protection (e.g. in a tent or, better yet, within your sleeping bag) they will render nearly hot coffee the next morning.  That plus a granola bar or two is usually enough to get moving in the morning.  Your body can only absorb about 400 calories of food an hour,  so it really doesn’t matter how much food you consume for breakfast once your have consumed an initial meal.

Depending on the type of winter camping trip you are taking it may not be desirable to hang around in the morning and cook breakfast.  A vacuum bottle of coffee and a quick bite enables one to pack up and move out.

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