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From my research so far into making cold brew coffee in a Nalgene while backpacking, I have found there to be two types of filters, cotton ones called "coffee socks" and mesh ones that screw onto t...
From my research so far into making cold brew coffee in a Nalgene while backpacking, I have found there to be two types of filters, cotton ones called "coffee socks" and mesh ones that screw onto t...