Simplify getting grounds into your espresso machine's portaholder with this 58mm funnel. May also be used as a canning funnel. Derived from my Mazzer grinder bean hopper which I will be moving away from this simple design. Note that ABS and PLA filament is generally not considered food safe. Printer nozzles made of brass and other pieces in the feed path such as filament tubes and cold-ends may also contain lead and other toxic substances.