It’a detained by magnets so it doesn’t get in the basket and interfere with spreading out the grounds. Needs a clean up with a lick of sandpaper, pretty stupid but these things cost like 50 bucks /shrug
EDIT: appreciate all the concern for my health, it touches dry coffee grounds. I agree that if it got wet there’d be health problems but unless it gets real humid there’s just no opportunity for decay. As for random leaching same diff, without heat and wet it’s not really a concern.
That said I probably will seal an improved design, this is just a test piece.
Or - and this seems to have escaped your analysis - in this case we’re talking about health and safety rules and rules dealing with food preparation. Not exactly the kind of rules you want to be gambling with. But sure. It’s a feee world, do what you want. But I still wouldn’t want to be using this with my coffee.
And you’re free not to, just don’t bash others for choosing to do so