Tangent: That sounds like a bad idea for food safety. And I’m referring to both the original and the recreation. If it were for myself, I would buy something made of metal.

On topic: Could you clean up the holes with a hot needle and some patience? PETG tends to be very stringy, which is probably the reason the holes are not well defined. Maybe try tuning your printer to minimise stringing? There are “food safe” PLAs, but washing/sanitizing them will be near impossible without warping them