4 ms·

I am shocked by how many people use 3d printed parts in the kitchen, printed PLA is not a food safe matieral. And if you print a toy for your kids it's gonna e

• mdorazio 8y ago
  See here [1]. No FDM printed item is going to be food safe because the layered properties allow the accumulation of bacteria, but PLA is generally non-toxic and will only leach a few "safe in small quantities" chemicals into things it comes in contact with. [1] http://www.sciencedirect.com/science/article/pii/027869159400145E http://www.sciencedirect.com/science/article/pii/02786915940...
  • flybrand 8y ago
    Could they mean that the material is suitable per 21CFR, but as you state, it would not meet the cleaning requirements. Benign material that could be single use, but a user should not be expected to be able to maintain a clean surface?
    • mdorazio 8y ago
      I think that's it. Ok for single use or for things that will only come in contact with food that will be cooked (like cookie cutters). Not ok for plates, cups, spatulas, etc. unless you seal them post-print with a food safe coating. I've seen people print both categories of things, though... As for toys, I don't see a big problem. Even if you eat PLA it won't really do much harm. It's safer than the ABS most toys are made from.