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this post was submitted on 01 Oct 2025
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Coffee
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The only thing I didn’t get: after making the ground precipitate to the bottom naturally, one could just filter it in a V60 without any issue. Normally I make cold brew with coarse ground coffee. Then I separate it in two steps, firstly pouring water in a caraffe leaving most of the grounds behind and then filtering the much cleaner liquid in the V60, which then takes much less time (but yeah more than filtering hot coffee) With his method the liquid poured is even cleaner even without additives, so I guess they’re not necessary at all
With a v60 (and many other types of filtering), the filter itself doesn't do the majority of the filtration. The bed of coffee grounds basically act as a filter for themselves (obviously held up by the filter papers at the bottom). It's why if you pour aggressively or stir the grounds as it's filtering, it will draw down way slower; fine grounds that would otherwise be trapped by courser grounds end up lodging themselves in the pores of the filter paper.
I've done the same process you are suggesting (and the same process but for filtering milk punch), and it was slower than filtering with everything. I think technically, the fastest might be decanting the supernatant into a separate container, spooning the grounds into a v60, and then pouring the supernatant through it gently.
That seems interesting I should try that I noticed that the filtering speed depends heavily on the type of coffee, for example I prepared cold brew with a decaf coffee which always took much more time to filter. Maybe it produced more fine ground but I don’t know for sure
Yeah, some beans just seem to give more fines. Makes sense that the process used to decaffeinate beans could make them more brittle.