Not a question, but an observation: I always thought the funnel was for when the vessel you are pressing into is smaller than the puck. I use the funnel because I often brew my coffee into a hydroflask thermos. The funnel fits perfectly into the opening and I can brew directly into the container. Did I read that somewhere? Thanks for your genius invention!!!:) – From Jim L.

The use of the funnel that you described was just coincidence. I designed the funnel to facilitate pouring ground coffee directly from the bin of a grinder into an AeroPress chamber.