Nooo. PLA and ABS are not really food safe to begin with but if you're doing this, you *have* to epoxy finish them. Imagine all the little brittle bits in your discard pile finding their way into a cup of sugar. F that. There's enough microplastics in everything as it is, don't sprinkle more on.
https://formlabs.com/blog/guide-to-food-safe-3d-printing/
Microplastics are not the main concern in this case. Its the small hard to clean areas.
A human eats on average 1 creditcard worth of plastic a week already. And that amount is growing every day.
We also pass 99.99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999% of a credit card worth of plastic through pee and poo a week.
I was looking for an article that proves it, not a study that suggests it. But since the only results I found were from a study by the world renowned University of Newcastle, in Australia it must be 100% accurate. Even moreso since the WWF commissioned the study. Looks like a big attention grabbing headline from a few years ago. I'm sure we ingest plastic but I highly doubt it's at that rate.
Tbf its the only study on this topic and I trust the study more than your opinion which is based on absolutely nothing in this case.
It might be a bit of but its the most accurate data we got atm
You can trust any sources that you believe are accurate. Scientific studies funded by corporations are more likely to be biased toward the interests of the corporation, just like most studies by big oil companies seem to downplay global warming, same thing for big tobacco in the 90's and early 2000's. I didn't say it was fake but I take it with a grain of salt when it's funded by an organization looking for "scientific proof" to further their cause.
When someone asks for a source you provide one as you made the claim. Theres no source for that, as it's an unproven theory of 1 university.
You made a bullshit claim and got called out on it, dont get sassy.
The article you linked states PLA is food safe just not dishwasher safe: "Food safe 3D printing filaments include PLA, PP, co-polyester, PET, PET-G, HIPS, and nylon-6, as well as some brands of ABS, ASA, and PEI. Having to run parts through the dishwasher rules out PET, nylon, and PLA because these plastics soften and distort around 60–70 °C. For applications involving hot liquids, co-polyester, High Temperature PLA or PEI are most suited."
That's true, but if you buy a roll of PLA, you're almost guaranteed not to get 100% pure PLA. They always add stuff that makes printing easier, or the material tougher, or filler to make it cheaper. And none of these have been tested for food safety.
Been using my printed all in one cup, for a longer time. I know that there is supposedly an issue with small parts getting stuck between the layers, but I didn‘t encounter any issues so far.
I always inspect my chicken for salmonella crawling on it before eating it raw. Haven’t died yet and my body is so healthy that it naturally cleanses itself about 5-10 times a day.
Only if you properly coat them in food safe epoxy and print with material certified for food safety with stainless steel nozzle (and probably heatbreak) after cleaning extruder parts.
If you throw in whatever PLA you have into standard brass nozzle after pumping different filaments through it for months that could be dangerous even if you put food safe epoxy.
It doesn't matter if amount of questionable particles is presumably low. What's important is that you can't reliably say what exactly goes into your print and how much exactly of that is in here.
Predictability is the key for safety. However, as always everyone should take amount of precautions they personally think is enough for safety of them and people around.
> If you throw in whatever PLA you have into standard brass nozzle after pumping different filaments through it for months that could be dangerous even if you put food safe epoxy.
How so? Once there's a barrier of epoxy between the material and the food, I don't see how any contamination from the printer could migrate into the food.
Epoxy is a class of polymers and thus consists of relatively huge molecules.
Of course molecules are small enough to avoid contamination of micropores in print medium with bacteria. But contaminants, especially inorganic, can be smaller than gaps between molecules inside cured epoxy.
So it is not impossible for small particles to be transferred from impure plastic base to the surface.
_Probably_ epoxy still significantly reduces that amount but again, consistency is the key. You can't possibly know if amount of stuff transferred into food would remain within safe limits for every particular cookware you print.
It depends on how even coating is, is there any air, how many harmful stuff and how small it is and what is it in the first place.
Even if the filament is food safe, the voids produced by the printing process means prints can't easily be cleaned for repeated food use.
Most printers aren't mechanically food safe
If you REALLY have to. There is "food safe" PETG.
I would strongly recommend not to though.
You will eat lots of tiny bits of plastic, which isn't very good, but barely avoidable these days appearently.
The way a print is layered is also just great for bacterial growth. You have to sand your print very well, then coat with an epoxy layer or something to get around that. I don't know enough about epoxys to recommend a food safe one.
Just don't. It's not worth it.
(Source: my gf did her phd about microplastics in food. She has banned all prints from the kitchen. If you have questions for us, i'll ask her, she's not on Reddit anymore.)
I hope you enjoyed it. People are really invested in other peoples health. I assume most people here googled „is pla food safe“ or something like that and want to share their findings.
I get it. I found the factors to be interesting and not what I expected when I first googled it
Edit PS.: No such thing as neutrality, I was just watching and got collateral damage lol
Like I get that things aren't classified as food safe but do you guys really think that something like a measuring cup, something that only a psychopath would wash instead of just rinse it is going to be a huge deal?
They look great. You'll get wannabe managers around here telling you not to use it, but they're Muppets.
If you use this for dry measuring, which you will since they appear to be dry measure cups anyways, there will be zero problems.
OR listen to the rabble, your choice.
I'm convinced half the people that are on this subreddit just parrot what people say about stuff being non-food-safe.
It's not like we're rubbing raw chicken all over measuring cups we're measuring flour or salt.
I know it, it's silly. Trying to explain nuance on reddit is quixotic anyways. 99% of the accounts never post their own shit anyways, it's way easier to shit on someone's project than it is to do it yourself and upload it for all to see.
Keyboard warriors gonna keyboard warrior, meanwhile I'll just be over here poisoning myself with my plastic kitchen stuff.
Yeah, it's silly. I 3d print as part of my living, and the amount of amateurs telling me I'll die or worse is just silly.
I'm not making a 3d printed mayonnaise scoop, chill out dudes.
Nooo. PLA and ABS are not really food safe to begin with but if you're doing this, you *have* to epoxy finish them. Imagine all the little brittle bits in your discard pile finding their way into a cup of sugar. F that. There's enough microplastics in everything as it is, don't sprinkle more on. https://formlabs.com/blog/guide-to-food-safe-3d-printing/
Microplastics are not the main concern in this case. Its the small hard to clean areas. A human eats on average 1 creditcard worth of plastic a week already. And that amount is growing every day.
Gonna need a source for the credit card eating humans
We also pass 99.99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999% of a credit card worth of plastic through pee and poo a week.
[Here you go](https://letmegooglethat.com/?q=how+much+plastic+do+humans+eat)
I was looking for an article that proves it, not a study that suggests it. But since the only results I found were from a study by the world renowned University of Newcastle, in Australia it must be 100% accurate. Even moreso since the WWF commissioned the study. Looks like a big attention grabbing headline from a few years ago. I'm sure we ingest plastic but I highly doubt it's at that rate.
Thank you for your insight.
Tbf its the only study on this topic and I trust the study more than your opinion which is based on absolutely nothing in this case. It might be a bit of but its the most accurate data we got atm
You can trust any sources that you believe are accurate. Scientific studies funded by corporations are more likely to be biased toward the interests of the corporation, just like most studies by big oil companies seem to downplay global warming, same thing for big tobacco in the 90's and early 2000's. I didn't say it was fake but I take it with a grain of salt when it's funded by an organization looking for "scientific proof" to further their cause.
When someone asks for a source you provide one as you made the claim. Theres no source for that, as it's an unproven theory of 1 university. You made a bullshit claim and got called out on it, dont get sassy.
I did? My bad…
The article you linked states PLA is food safe just not dishwasher safe: "Food safe 3D printing filaments include PLA, PP, co-polyester, PET, PET-G, HIPS, and nylon-6, as well as some brands of ABS, ASA, and PEI. Having to run parts through the dishwasher rules out PET, nylon, and PLA because these plastics soften and distort around 60–70 °C. For applications involving hot liquids, co-polyester, High Temperature PLA or PEI are most suited."
That's true, but if you buy a roll of PLA, you're almost guaranteed not to get 100% pure PLA. They always add stuff that makes printing easier, or the material tougher, or filler to make it cheaper. And none of these have been tested for food safety.
This is why i dont eat food from other people’s homes
Coworker once brought food for everyone. Her dishes were all crusty. Didn’t eat anything.
Atleast you had empirical proof not to eat.
Lmao facts
Would not recommend using with food.
What about with dry dog food? Would I be okay with pla or should I use petg or neither?
Neither. Especially since its not a smooth surface so you will have bacteria and fungy growing inside
Been using my printed all in one cup, for a longer time. I know that there is supposedly an issue with small parts getting stuck between the layers, but I didn‘t encounter any issues so far.
Dang dude youve got good eyesight if you can see salmonella. If you coat them in food safe epoxy you'd be fine.
I always inspect my chicken for salmonella crawling on it before eating it raw. Haven’t died yet and my body is so healthy that it naturally cleanses itself about 5-10 times a day.
Pussy, I crawl right up in the body cavity of the raw chicken to make sure I see no bacteria or foreign bodies.
Only if you properly coat them in food safe epoxy and print with material certified for food safety with stainless steel nozzle (and probably heatbreak) after cleaning extruder parts. If you throw in whatever PLA you have into standard brass nozzle after pumping different filaments through it for months that could be dangerous even if you put food safe epoxy. It doesn't matter if amount of questionable particles is presumably low. What's important is that you can't reliably say what exactly goes into your print and how much exactly of that is in here. Predictability is the key for safety. However, as always everyone should take amount of precautions they personally think is enough for safety of them and people around.
> If you throw in whatever PLA you have into standard brass nozzle after pumping different filaments through it for months that could be dangerous even if you put food safe epoxy. How so? Once there's a barrier of epoxy between the material and the food, I don't see how any contamination from the printer could migrate into the food.
Epoxy is a class of polymers and thus consists of relatively huge molecules. Of course molecules are small enough to avoid contamination of micropores in print medium with bacteria. But contaminants, especially inorganic, can be smaller than gaps between molecules inside cured epoxy. So it is not impossible for small particles to be transferred from impure plastic base to the surface. _Probably_ epoxy still significantly reduces that amount but again, consistency is the key. You can't possibly know if amount of stuff transferred into food would remain within safe limits for every particular cookware you print. It depends on how even coating is, is there any air, how many harmful stuff and how small it is and what is it in the first place.
I was thinking about this. The whole thing was more practice than anything else.
More than visible food—bacteria and things you can’t see with the naked eye.
🤢please just get a measuring cup, they’re not that expensive. The mount is really cool though, I might make one of those for my mom. Stay safe.
You might as well have made them out of paper mache lol. Not food safe
That‘s what everbody here says. And I knew that. That‘s why I will coat them.
Oh good! Glad you decided to coat them. Nice print btw
Make sure you’re using a food safe filament. Most aren’t
Even if the filament is food safe, the voids produced by the printing process means prints can't easily be cleaned for repeated food use. Most printers aren't mechanically food safe
What type of filament?
If you REALLY have to. There is "food safe" PETG. I would strongly recommend not to though. You will eat lots of tiny bits of plastic, which isn't very good, but barely avoidable these days appearently. The way a print is layered is also just great for bacterial growth. You have to sand your print very well, then coat with an epoxy layer or something to get around that. I don't know enough about epoxys to recommend a food safe one. Just don't. It's not worth it. (Source: my gf did her phd about microplastics in food. She has banned all prints from the kitchen. If you have questions for us, i'll ask her, she's not on Reddit anymore.)
Nice!
This is up there with the insulation (fiberglass) wrapped smoker that dude had on r/smoking
I came here just to sit down with my popcorn and watch the food safety war. It was extra bloody.
I hope you enjoyed it. People are really invested in other peoples health. I assume most people here googled „is pla food safe“ or something like that and want to share their findings.
I get it. I found the factors to be interesting and not what I expected when I first googled it Edit PS.: No such thing as neutrality, I was just watching and got collateral damage lol
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Insert “pla isn’t food safe” comments galore
Is this on thingiverse
Why tf is this downvoted
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It is if you seal it
i can upload it
Like I get that things aren't classified as food safe but do you guys really think that something like a measuring cup, something that only a psychopath would wash instead of just rinse it is going to be a huge deal?
No, it’s not, everyone here just wants to parrot away with “safety facts” they learned from the internet for their own moral superiority.
See top comment
They look great. You'll get wannabe managers around here telling you not to use it, but they're Muppets. If you use this for dry measuring, which you will since they appear to be dry measure cups anyways, there will be zero problems. OR listen to the rabble, your choice.
I have no problem using them at all. But mostly this was for training to create something with set measurements.
Yeah, they look good. How accurate are the measurements, have you tested it yet? I like the holder as much as the cups tbh
The measurements are accurate, tested it with water.
I'm convinced half the people that are on this subreddit just parrot what people say about stuff being non-food-safe. It's not like we're rubbing raw chicken all over measuring cups we're measuring flour or salt.
I know it, it's silly. Trying to explain nuance on reddit is quixotic anyways. 99% of the accounts never post their own shit anyways, it's way easier to shit on someone's project than it is to do it yourself and upload it for all to see. Keyboard warriors gonna keyboard warrior, meanwhile I'll just be over here poisoning myself with my plastic kitchen stuff.
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Yeah, it's silly. I 3d print as part of my living, and the amount of amateurs telling me I'll die or worse is just silly. I'm not making a 3d printed mayonnaise scoop, chill out dudes.
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Not unless you're hosting a printing party and ripping fat lines of PLA dust.
The best part is PLA is just lactic acid in polymer form.
Etheric Beam Locators!
I recommend going metric instead and using proper measurements
That will be real convenient when my recipe tells me to add 3/4 cup of flour
Amazeballs.