[@mmc_jake]

Hey @Jen2 – these are typically printed using PLA (polylactic acid) filament (@labrewster can confirm the filament that these were printed in) which is generally considered nontoxic in solid form. ABS (Acrylonitrile butadiene styrene) filament is also sometimes used and while safe in solid form and at normal temperatures (e.g. LEGO is made from ABS), it can give off hazardous fumes when heated (above 400 C).

However, all 3D prints are inherently porous, which can provide a space for germs and bacteria to grow where they are difficult to clean / remove. For that reason, and some other related ones, 3d prints are generally not food safe.

If the items are to be used between multiple users, it may make sense for people to wash hands between uses and clean and disinfect the devices between users: https://makersmakingchange.com/wp-content/uploads/2020/06/Cleaning-3D-Prints.pdf