How to maintain coffee flavor all day in vacuum thermos
(Holly Springs, NC)
I work long shifts at a mall kiosk with no access to a coffee maker. I need to be able to make coffee in the morning and have it hot and tasty all day.
Like a good coffee snob, I have been fresh grinding the beans and making coffee in a thoroughly-cleaned french press in the morning and pouring it into a thoroughly-cleaned vacuum sealed thermos so I can have hot tasty cups of coffee all day at work.
Unfortunately, while the coffee tastes great in the morning, as the day goes on it seems to become more acidic such that the sourness eventually overpowers everything else. What I suspect is happening is the constant heat in the thermos is ruining the coffee's flavor over the course of the day.
I need some suggestions for making coffee that will keep well in a thermos. I usually prefer coffee black and strong, but I've tried adding some milk and sugar to the mix in order to mitigate the flavor degradation- however this was to no avail.
This might be a terrible idea but I've thought about putting some coffee in a tea ball and putting that in the thermos so that as the acidity grows throughout the day at least there will be some counter-acting bitterness.
Thanks for your help!
Tough question. : )
While the thermos is keeping your coffee hot, at the same time it is also allowing the hot coffee to slowly stew.
A thermos is great for keeping coffee hot for an hour or two, without too much loss in the quality of the coffee. But for a full day, that’s asking too much
And I think your tea ball idea will simply add to the nasty taste.
But here is something you can do.
Don’t fill your thermos with coffee, fill it with hot water.
Then get yourself a coffee press mug from Amazon.
When you want fresh coffee, put ground coffee in the travel mug, add hot water from the thermos, wait a bit, push down the plunger, and presto – fresh coffee!
Hope this helps.