There are countless great arguments to switch to cooking with cast iron, but a socio-political one was outlined recently by the HBO Comedy show, Last Week Tonight, as they profiled a report on the effects to both our health and the environment from the types of chemicals used to make other non-stick frying pans.
You can watch the twenty-minute clip embedded below … which if you are unfamiliar with the show is a late-night, no-holds-barred news-comedy program. (And a language/political-bend warning for those with sensitive minds.)
To sum up ( if the clip doesn’t play in your part of the world) a group of chemicals called PFAs have been used to make all sorts of modern products since the 1950s. While there have been countless conveniences from these products, there have also been many environmental and human health problems that have been identified from the manufacture or disposal of things containing those chemicals.
One of the big, well known products is Teflon™ which could be considered the non-stick alternative to a well-seasoned cast iron pan.
But where cast iron becomes non-stick through seasoning, a process that can be done at home and involves the polymerization of food-safe oils into a thin, slick surface on top of the raw iron, chemical non-stick coatings are factory applied and involve typical sorts of industrial side effects.
Of course, manufacturing cast iron cookware is undeniably a resource intensive effort, too. Mining, refining, extreme heat, and casting, not to mention the costs of shipping heavy pieces of cookware around the world.
Neither of these are perfect.
But as the scales weigh out the pros and cons, cast iron versus coated non-stick pans, factoring in things like longevity of the cookware itself, sustainability of the manufacturing process, impacts to our well-being and our world, and the accumulation of chemical debt that is incurred by the mass production and disposal rates of both these options, I more and more feel like those scales are tilting out towards cast iron.