You can get PLA that’s certified as food safe ( https://filaments.ca/products/true-food-safe-pla-water-natural-1-75mm , for example), but you’ve still got the geometry issues people have already mentioned to deal with. You have to coat or smoothe the surface to remove the openings between layers, or disinfect somehow between uses—a nice bleach soak ought to neuter the guck in the interlayer gaps. Above all, use common sense.
You can get PLA that’s certified as food safe ( https://filaments.ca/products/true-food-safe-pla-water-natural-1-75mm , for example), but you’ve still got the geometry issues people have already mentioned to deal with. You have to coat or smoothe the surface to remove the openings between layers, or disinfect somehow between uses—a nice bleach soak ought to neuter the guck in the interlayer gaps. Above all, use common sense.