What’s the best 3D printing material to use for a chocolate mold that would meet the FDA’s requirements?
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cobnut
2
Hi @Keidrik Taulmann T-Glase is apparently FDA approved for food usage. However, I’d recommend using a food-safe sealant on the print, rather than relying on the print itself because FDM printing produces tiny fissures and holes that may not even be visible to the naked eye, but which make great germ harbours. So, if you use a food-safe sealant, the material you actually use for the print becomes largely irrelevant.
Which food-safe sealant should you use? No idea, but Googling “food safe (or grade) sealant (or resin)” suggests there’s quite a lot to choose from out there. Just plucked this one from the results: EP30HV Product Information | MasterBond.com
Taulman nylon is food safe, but as @cobnut said, its the tiny fissures that get you!
So, if you just put just tea in a cup that you printed, you are fine. If you put milk in that tea, you are gonna get sick.
Chocolate molding should be fine, as the fat content is so high that it is difficult for bacteria to form on it, and if you wash it between uses in a dishwasher it should be ok for that purpose alone.
