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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.

    the trouble with that is when i run out i have to brew more which eats into my rest stop time, with concentrate i can make up a ton and the only prep beyond that is to fill and boil a kettle during my dinner and breakfast stops. add in aeropress to that and I burn another 3-4 minutes time and time is probably going to be super tight to achieve my target distance.

    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?

    yeah this is my thought exactly on pre-preparing it. saw some blog posts about making a concentrate and thought i'd see if anyone had any successes with it here.

  • Do what Mick said and make a litre of cold brew. If you brew it for 12 hours then you can drink it 50/50 with water, hot or cold, and it will give you a proper caffeine hit.

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