Re: Safest cookware? (pots/(frying)pans)
So far the safest seem to be:
Cast Iron Non-coated but 'seasoned' by yourself. Cast iron coated (with usually a wax) are fine too but you need to scour that off and season yourself as described above. Click the link to see how to season:
How to season cast iron pans/skillets
Stainless steel - but these are not non-stick (so for frying you have to cook with more oil, and any non-stick variants will use some kind of coating, so beware of those). However, the upside is they don't have any chemical coatings. Go for the copper based ones if you can afford them.
Hope that helps someone else! Looks like I will be buying some cast iron and stainless steel pans soon
Just a note to say that:
GreenPans, may be a contender for those who don't want iron-cast but do want non-stick. But they are aluminum. Unlike teflon coated pans, they don't use PTFE or PFOA in their coating, but use Thermolon instead (which is a non-stick mineral based on sol-gel technology... and doesn't release any toxic fumes at high temps - so can be used for browning). However, I wouldn't trust an anodized aluminum product anyway - because of the fears of aluminum/Alzheimers, plus it's still a chemical coating which I'd personally want to steer clear off.
Gastroflux, may be another contender for those not wanting iron-cast but something non-stick. They say they are "Certified by the Danish Institute of Technology as free from ANY emissions from PFOS, APFO and PFOA chemicals as found in most other non-stick cookware" and their non-stick surface is made out of Biotan, with bio-minerals: "Now with the addition of natures own repellent BIOTAN® surface protection the pan is now totally non-absorbent to foods, tastes, odours and even oils". However, despite their claims of using 'natural' bio-minerals in their coating - it's still a chemical coating and personally I wouldn't want to take the risk.
Conclusion
So for me personally, I'd steer clear of chemically coated pans, and get an iron-cast skillet, stainless steel pans with copper bases and a stainless steel frying pan for when you want to fry tomatoes (as you shouldn't really fry tomatoes in iron-cast pans). Iron-cast and enameled casserole dishes seem fine too.