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I'd probably just put prepared hot coffee in a flask. Brewing fresh in an aeropress with under-temp water will probably have similar mediocrity as 12 hour thermos coffee but with more dicking about, unless you're really keen on the process. It's not like you're having eggs benny on the terrace on a sunday morning - you'll just be after a reasonably tasty caffeine hit rather than pursuing the Nth degree of quality won't you?
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Considered a batch of cold brew?
I took a litre to a 12hr (movie) marathon last year and it was still tasting lovely by the end. Also packs a punch regarding caffeine content relative to standard filter (depending on how little you dilute it).
Depending on the intensity of the race I'd say a cold drink would be better than a boiling one also!
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Chocolate covered coffee beans 😀
Strong cold brew in a small soft flask.Thats going to be my caffeine options for Glenmore 24. Both options let you keep moving instead of dicking about standing still. Save the thermos for some hot soup just incase the going gets a bit grim.
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Stevethecoffee
mmccarthy
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@HatBeard
Am off to a 24 hour ultra race in 3 weeks and will only have v. Limited time to prepare coffee during my breaks.
Is it madness to consider making up a big bottle of coffee concentrate the night before and then prepare each cup from 1/3 concentrate and 1/2 hot water from thermos which I can re fill once or twice during my meal breaks.
The other option is to use thermos hot water in an aero press. I tested the thermos and water was still steaming hot after 24hrs so should be piping hot for the 8 hours or so between refills. Ideally should be refuelling and changing kit on my breaks so this is a bit too much of a faff I think.
If concentrate is fine. What's the easiest way to knock up a large batch? Big Chemex brewer?
I should add I will have my own tent in camp where I take my breaks so all the kit will be staying there not carried