Food-safe PLA?
posted in Community by
mayo
Does anyone know a way to make PLA food-safe? Are there foodsafe FDM printers that print PLA? Is there a coating I can lay on?
9 years, 4 months ago
Theoretically a material can be cleaned after manufacturing so the "food safe printer" concern is secondary to me.
A new thermos at costco had very clear instructions on how to sterilize it, so don't think that those manufacturing lines are much better than your printer.
I wonder if anyone on makexyz has an operating food-safe set up. Anyone know?
I've looked into this on several occasions and TBH, I've reached the conclusion that it's simply not worth going to all the trouble of printing with a supposedly "food-grade" plastic as the printing process can change the chemistry of the material itself. You could contact Microban and ask them to develop a 3D printable version of their product or, if you can get hold of some granulated Microban, you could get someone to extrude some filament for you or, I suppose, if you use a medical grade plastic, you might safeguard yourself from criticism simply by arguing that it's the most biologically compatible material available.
Me? I'd happily munch on a 3D printed cocktail stick for half an hour but knowing how litigious things can get on your side of the pond there'd need to be a really persuasive business case.
https://3dprintingindustry.com/news/filaments-ca-releases-fully-food-safe-pla-for-3d-printers-140861/
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