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We've been using this environmentally friendly non stick pan called the Green pan from Costco and I've done some research on it, but I cant seem to find anything or anyone debunking the safeness of the pan. I've heard a lot about those so-called "environmentally friendly" products being just another money grab.

Are they safe to use? Is it another Teflon? Would cast iron be better solution for pans?

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I've seen these pans at one of the local cookware/houseware stores as well and wondered the same thing. The best I've been able to dig up so far is the following:

GreenPan's official statement about their material is:

GreenPan™ does not use PTFE, but brings with Thermolon™ non-stick technology a healthy alternative to the market. Thermolon™ is heat resistant up to high temperatures. This means that GreenPan™ has an extra safety feature; if you overheat your pan, even up to 450°C/850°F, no toxic fumes will be released and the coating will not blister or peel.

Obviously I can't verify the claims about overheating and the absence of fumes or blistering/peeling, but one thing is for certain: The pans are not Teflon. Instead they use a Thermolon compound, which really and truly does not use PTFE, the "harmful" compound in Teflon products.

Of course, as we all know, that doesn't mean it's safe. This "Thermolon" stuff is brand-new to the market so there's been very little real-world testing done. And nobody seems to know exactly what it's made of. If you look at early sources you'll see them blathering on about it being made with "nanotechnology", but I found an interesting little tidbit on Mother Nature Network:

UPDATE: Thermolon’s non-stick formulation is actually not the product of nanotechnology. It turns out that one of the company’s “over-enthusiastic” copy writers slipped that description in because it “sounded high-tech,” not because it was true.

This information seems to be confirmed at SuperEco. None of them cite a source, but apparently this came straight from the horse's mouth (Thermolon) - they refuted the nanotech claim themselves.

So one thing we do know about this company is that they've made at least one bald-faced lie. That's not enough to indict them on safety terms but it certainly does cast a suspicious light on them. The company is also in South Korea - again, not that this necessarily means anything but SK has a pretty dismal track record when it comes to safety.

It's also interesting to read some of the reviews. I've seen several go like this on one the MNN page:

Obviously all these great comments about the pans were from people who most likely had only these pans for a few months. They worked great for about 6 months and then every single think I cooked started to stick and burn to the pans.

Other people say they lasted for a year, two years, etc., but all seem to confirm the same basic fact: the non-stick coating wears off over time. If it wears off, it has to go somewhere, and that somewhere is probably in your food. Whether or not these incredibly tiny amounts of unspecified ceramic material are actually dangerous remains to be studied.

So to summarize, here's what the reality seems to be:

  • Is it Teflon? No, and it doesn't use any PFOA/PTFE.
  • Is it safe? Inconclusive. So far there's no evidence of safety issues.
  • Is it eco-friendly? Given that the company is so defensive about its manufacturing process, I'm inclined to believe that their "green" claims are exaggerated at best.
  • Is it actually any good? Only with very light use, according to the reviews.
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Whoa! thank you for your time and effort you put it into this question! I have read about thermolon too, but again, people doesnt seem to know what they are. I guess we'll just have to wait until and see...In the mean while, I will have to do more research about other alternatives. Thank you! –  konamiwa Nov 28 '10 at 15:58
    
It's worth noting that "normal" nonstick coating will also wear off over time, especially with heavy use. It's best to not get too attached to your nonstick pans. –  Bob Nov 29 '10 at 13:18
    
That is correct, @Bob, although I think the point was that GreenPan seems to be implying that their pans are safer than Teflon, a claim which should be met with suspicion given the fact that the coating leaches off. Also, YMMV, but my Teflon has lasted upwards of 3 years with moderate use, which seems to be better than what people are saying about the GreenPan. –  Aaronut Nov 29 '10 at 13:59
    
For what it's worth, we were given a few of these as a gift, but after the nonstick wore off. We've switched to cast iron and a cheap teflon (expecting to need to replace it). –  wbyoung Nov 22 '13 at 18:32
    
If you are looking for alternatives, I ditched all my nonstick for DeBuyer's mineral steel line. They aren't super pricey, they are much better than my all clad pans at not sticking, and they last. Downsides, they are heavy and must be cleaned and dried immediately, or they rust. I'm not affiliated with DeBuyer in any way, just happy with their product. –  Evan May 30 at 22:13

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