The biggest reason why PLA is generally NOT food safe is not the micro pores that enable bacteria growth, the problem is compounds on the additives used to tint PLA.
There the PLA resin but then there’s whatever random chemical to achieve colour that might NOT be food safe. It could contain traces of Lead or other heavy metals, cancer causing substances and other stuff that is not supposed to be eaten or come into contact with food
No, no no no!
The biggest reason why PLA is generally NOT food safe is not the micro pores that enable bacteria growth, the problem is compounds on the additives used to tint PLA.
There the PLA resin but then there’s whatever random chemical to achieve colour that might NOT be food safe. It could contain traces of Lead or other heavy metals, cancer causing substances and other stuff that is not supposed to be eaten or come into contact with food
There are some that are OK https://all3dp.com/2/food-safe-filament-brands-compared/