Been an while since I looked it up, but I thought it was depended on the material. PLA IIRC is somewhat porous and will harbor bacteria, for example.
Comment on I need a cheap part to fix a bread machine that's under warranty. "We can send you a new machine."
Chocrates@lemmy.world 4 weeks agoNot sure about TPU, but can any FDM printed material be food safe? I thought the layers (even with sanding) harboured bacteria.
bluesheep@lemm.ee 4 weeks ago
Cort@lemmy.world 4 weeks ago
I think tpu does come in food safe formulations. For a gasket that isn’t coming into contact with food, and wouldn’t regularly be washed anyway, I wouldn’t really have concerns. Especially if you can design the gasket thin enough to reduce the number of layer lines.
I’d have more concerns if the printed part came into direct contact with the food. Anything you’d want to put into a dishwasher is completely out of the question; thermoplastics don’t handle the high temps gracefully
Ajen@sh.itjust.works 4 weeks ago
Based on this research paper, washing with soap and warm water is enough to remove harmful bacteria.
researchgate.net/…/373174194_Sanitation_Effective…