Use Food-Grade Filaments – Also known as PLA, it’s a biodegradable filament made of cornstarch derivatives. You can use it to print cookie cutters at a low temperature of 158°F (75°C). One of the best things about PLA is that it rarely deforms during cooling. It happens to exude a sweet scent, too!
If it’s one-time-use, both ABS and PLA are perfectly safe for use as a cookie cutter. The “food safety” of 3D printed parts is fairly controversial. In fact, whether any particular material is approved by regulators (such as the US FDA) for food contact is much more complex than most people realize.
How do you make a 3D printer food safe?
The best option to reduce the risk of particle migration and bacteria buildup is by dip coating the 3D printed parts with a food grade epoxy or polyurethane resin, such as Masterbond’s EP42HT-2FG or ArtResin or an FDA approved PTFE (known as Teflon) to seal their surface.
The secret is just to dry out your cookie cutters the best you can on a towel, or even on a rack in the oven for a while. And then all you need to do to is dust your cookie cutters with cornstarch before putting them back into storage.
Plastic cookie cutters can go on the dishwasher’s top rack but tin-plate and copper cutters need a little bit more TLC; specifically, they need to be completely dried, lest they rust. Unless you want to have a cutter does not rust which is the “stainless steel” cutters, with hassle-free.
Ann Clark’s tin-plated steel cookie cutters are NOT dishwasher safe! To clean and prevent rust, hand wash and dry immediately.
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