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I've used one of these filter holders on top of a thermos, pouring hot water a little at a time. If you don't want to carry a thermos, use a mug. A largish single-walled mug + one of these and a...
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I've used one of these filter holders on top of a thermos, pouring hot water a little at a time. If you don't want to carry a thermos, use a mug. A largish single-walled mug + one of these and a...