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Recommendations
For Firefox users, there is media bias / propaganda / fact check plugin.
https://addons.mozilla.org/en-US/firefox/addon/media-bias-fact-check/
- Consider including the article’s mediabiasfactcheck.com/ link
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The caveats you express are somewhat valid, but not totally correct. Printing correctly, with a food safe nozzle, path, and PLA formulation, is entirely possible. Simply printing in single layers, with a properly dialed in printer can eliminate your concerns. Medical items and implants are printed out of PLA, albeit with extreme production controls.
However, printing these single use items would be absolutely un-economical. 3D printing shines in short runs, bespoke items, like replacement part that are out of production, or which are very difficult to manufacture by other methods like injection or machining.
Its true that PLA, in unmodified form, has a much higher modulus than PP or PE, so squishiness is out of the question. What I have mentioned before is that I have bought single serve olive oil in PLA containers. From what I could see, these were injection molded and had a film top made from a plastic I never bothered to identify.
These containers were surprisingly elastic when crushed, not as elastic as other plastics, like PET, PP or PE, but much more than I had come to expect from my experience with the material. I'm going to attribute this to molding vs. extruding.