I've been wanting to 3d print fully food safe items since before I started printing 6 years ago, and think I just found a workable answer - please give honest feedback and helpful ideas or critiques. Thanks!
The option I'm hoping to try is to print 100% infill with food grade pla (now that FDA approved PLA exists), then salt anneal it to smooth and remove all layer lines, removing those nice little homes for bacteria to live in. I believe this would make a fully food-grade, washable, long term 3d printed part - what do y'all think - is this viable?
More expensive and time intensive options would be using 3d prints to cast food grade metals or get into ceramic 3d printing, both of which I would love to get in to in the future when AI have more resources. Are there any options I'm missing for long term use, not bacteria home prints?