you don't mean you bin it ? - how long does it take to finally all run through ?I haven't looked too much into how to use this, i guess there are various methods but seeing I couldn't get all the way to the rim I put in 75ml first for the bloom, eject that, then seal and put in another 175ml to get 250ml total.
apart from slightly more expensive larger filters , why wouldn't you go for an 03, more space if there is any slop that might go over filter edge.
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had seen this as another brew strategy - very fine meshed tea infuser