alt Hacker NewsYou can make it reasonably food safe with an acetone mist bath, though. It melts all the irregularities into a smooth surface.
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phoronixrly • last Monday at 1:51 PM
While theoretically you can get certified food-safe blend of PLA, the rest of the extrusion path must also be food-safe... I personally am not fond of eating hot degraded PTFE... Or the trace remains of charred ASA/ABS I printed last week through the same nozzle... Or in fact any of the various coatings of the heated bed or leftover trace amounts of previous prints...
It's just a black hole that I choose not to get into by not printing stuff that's expected to be in contact with food.
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That's ABS- PLA is not really soluble in acetone. It's soluble in limonene.