Reddit reviews MAX CLR Epoxy Resin System -Direct Contact Food Safe Coating, FDA Compliant High Gloss, Chemical Resistant, Crystal Clear Coating 4 Bar Tops & Tabletops & Wood Lathed Cups & Bowls- Clear Casting Resin

Yeah, this is recommended on another 3d printing thread I'm probably going to buy some and try it out myself :)

Amazon links, you are looking for FDA safe epoxies.

[link1] (https://www.amazon.com/CLEAR-GRADE-Epoxy-Resin-System/dp/B01J16MYSE/ref=sr_1_6?ie=UTF8&qid=1474585448&sr=8-6&keywords=FDA+epoxy)

[link2] (https://www.amazon.com/Alumilite-amazing-clear-cast-resin/dp/B013H6OTPK/ref=sr_1_4?ie=UTF8&qid=1474585448&sr=8-4&keywords=FDA+epoxy)

edit: I wonder if copper infused filament would be food safe? It is naturally antibacterial.

MAX CLEAR GRADE Epoxy Resin System - 48oz. Kit - Food Safe, FDA Compliant Coating, Crystal Clear, Stain Resistant, Countertop and Tabletop Coatings, Wood Coatings, Fiberglassing Resin https://www.amazon.com/dp/B01J16MYSE/ref=cm_sw_r_cp_api_i_lgB6CbQBNK2DX

They do. https://www.amazon.com/CLEAR-GRADE-Epoxy-Resin-System/dp/B01J16MYSE

https://www.amazon.com/CLEAR-GRADE-Epoxy-Resin-System/dp/B01J16MYSE

Not just any epoxy. Should be good grade. And if you’re using the glasses from alcohol or acidic drinks, I’d be careful not to use them too regularly, as (I’m not 100% certain) it may degrade the epoxy a bit, and it’s probably not a great idea to ingest those particles.

I just googled food saw epoxy and this one here is supposed to be FDA compliant.

Why did the chemical engineer say he wouldn’t want to eat out of anything with epoxy?

You could always coat it with clear food grade resin. Here is on I found on amazon.

Edit- Make sure you read the labels to see what kind of food contact it can have. Some things are fine for dry food but not liquids.

Food safe (direct contact) resin:

https://www.amazon.com/MAX-CLEAR-GRADE-Epoxy-System/dp/B01J16MYSE/ref=sr_1_3?keywords=max+clr&qid=1569852392&s=gateway&sr=8-3

I would prefer silicone since resins have BPA in them. However, I have yet to find a food safe silicone coating. Silicone conformal sprays are more for water proofing electronics so food safety isn't a feature of them.

I'll take a look. I toyed with the idea of selling cookie cutters on Etsy earlier this year, but got super depressed midway during the design phase and never made it to sealing. I got close to a finished model for a few of my designs, but found the gaps around the edges discouraging.

Something like this should work, but you can probably find a cheaper version at Michaels or somewhere.

I second the PETG idea, though. PETG is usually food-safe (we've got a PETG neti pot we bought at the pharmacy, and that goes in your nose), and it holds up to higher temperatures better than PLA so you could totally throw it in the dishwasher.

The other thing you want to be careful of is the brass nozzles might sometimes leach bad chemicals into your cutter. You can get stainless steel nozzles, but they're a bit pricier? They'd be a lot safer, though if you're extremely worried you might want to do the old "into a pot of boiling water" trick to sanitize them.

PETG is actually food safe, but the lamination lines will trap food that will spoil.

This epoxy resin is food safe, as are several others

https://www.amazon.com/MAX-CLEAR-GRADE-Epoxy-System/dp/B01J16MYSE/ref=mp_s_a_1_1_sspa?keywords=food+safe+resin&qid=1567106734&s=gateway&sprefix=food+safe+resin&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFPNEk5MjY4MERTTEsmZW5jcnlwdGVkSWQ9QTA5OTA1MjIySTQ3WEpURE5HREREJmVuY3J5cHRlZEFkSWQ9QTAzODQ4NDhLRUM1RDJUSldPSjYmd2lkZ2V0TmFtZT1zcF9waG9uZV9zZWFyY2hfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

You may be able to fill it with epoxy. Find a food-safe one. https://www.amazon.com/CLEAR-GRADE-Epoxy-Resin-System/dp/B01J16MYSE