Mythbusting Cookware Materials
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
In Wednesday’s newsletter, we asked you what kind of cookware you mostly use, and got the above-depicted, below-described, set of responses:
- About 45% said stainless steel
- About 21% said cast iron
- About 15% said non-stick (e.g. Teflon)
- About 9% said enamel
- About 6% said aluminum
- And 1 person selected “something else”, but then commented to the contrary, writing “I use all of the above”
So, what does the science say about these options?
Stainless steel cookware is safe: True or False?
True! Assuming good quality and normal use, anyway. There really isn’t a lot to say about this, because it’s very unexciting. So long as it is what it is labelled as: there’s nothing coating it, nothing comes out of it unless you go to extremes*, and it’s easy to clean.
*If you cook for long durations at very high temperatures, it can leach nickel and chromium into food. What this means in practical terms: if you are using stainless steel to do deep-frying, then maybe stop that, and also consider going easy on deep-frying in general anyway, because obviously deep-frying is unhealthy for other reasons.
Per normal use, however: pretty much the only way (good quality) stainless steel cookware will harm you is if you touch it while it’s hot, or if it falls off a shelf onto your head.
That said, do watch out for cheap stainless steel cookware that can contain a lot of impurities, including heavy metals. Since you probably don’t have a mass spectrometer and/or chemistry lab at home to check for those impurities, your best guard here is simply to buy from a reputable brand with credible certifications.
Ceramic cookware is safe: True or False?
True… Most of the time! Ceramic pans usually have metal parts and a ceramic cooking surface coated with a very thin layer of silicon. Those metal parts will be as safe as the metals used, so if that’s stainless steel, you’re just as safe as the above. As for the silicon, it is famously inert and body-safe (which is why it’s used in body implants).
However: ceramic cookware that doesn’t have an obvious metal part and is marketed as being pure ceramic, will generally be sealed with some kind of glaze that can leach heavy metals contaminants into the food; here’s an example:
Lead toxicity from glazed ceramic cookware
Copper cookware is safe: True or False?
False! This is one we forgot to mention in the poll, as one doesn’t see a lot of it nowadays. The copper from copper pans can leach into food. Now, of course copper is an important mineral that we must get from our diet, but the amount of copper that that can leach into food from copper pans is far too much, and can induce copper toxicity.
In addition, copper cookware has been found to be, on average, highly contaminated with lead:
Non-stick cookware contaminates the food with microplastics: True or False?
True! If we were to discuss all the common non-stick contaminants here, this email would no longer fit (there’s a size limit before it gets clipped by most email services).
Suffice it to say: the non-stick coating, polytetrafluoroethylene, is itself a PFAS, that is to say, part of the category of chemicals considered environmental pollutants, and associated with a long list of health issues in humans (wherein the level of PFAS in our bloodstream is associated with higher incidence of many illnesses):
You may have noticed, of course, that the “non-stick” coating doesn’t stick very well to the pan, either, and will tend to come off over time, even if used carefully.
Also, any kind of wet cooking (e.g. saucepans, skillets, rice cooker inserts) will leach PFAS into the food. In contrast, a non-stick baking tray lined with baking paper (thus: a barrier between the tray and your food) is really not such an issue.
We wrote about PFAS before, so if you’d like a more readable pop-science article than the scientific paper above, then check out:
PFAS Exposure & Cancer: The Numbers Are High
Aluminum cookware contaminates the food with aluminum: True or False?
True! But not usually in sufficient quantities to induce aluminum toxicity, unless you are aluminum pans Georg who eats half a gram of aluminum per day, who is a statistical outlier and should not be counted.
That’s a silly example, but an actual number; the dose required for aluminum toxicity in blood is 100mg/L, and you have about 5 liters of blood.
Unless you are on kidney dialysis (because 95% of aluminum is excreted by the kidneys, and kidney dialysis solution can itself contain aluminum), you will excrete aluminum a lot faster than you can possibly absorb it from cookware. On the other hand, you can get too much of it from it being a permitted additive in foods and medications, for example if you are taking antacids they often have a lot of aluminum oxide in them—but that is outside the scope of today’s article.
However, aluminum may not be the real problem in aluminum pans:
❝In addition, aluminum (3.2 ± 0.25 to 4.64 ± 0.20 g/kg) and copper cookware (2.90 ± 0.12 g/kg) were highly contaminated with lead.
The time and pH-dependent study revealed that leaching of metals (Al, Pb, Ni, Cr, Cd, Cu, and Fe, etc.) into food was predominantly from anodized and non-anodized aluminum cookware.
More metal leaching was observed from new aluminum cookware compared to old. Acidic food was found to cause more metals to leach during cooking.❞
~ the same paper we cited when talking about copper
Cast iron cookware contaminates the food with iron: True or False?
True, but unlike with the other metals discussed, this is purely a positive, and indeed, it’s even recommended as a good way to fortify one’s diet with iron:
The only notable counterpoint we could find for this is if you have hemochromatosis, a disorder in which the body is too good at absorbing iron and holding onto it.
Thinking of getting some new cookware?
Here are some example products of high-quality safe materials on Amazon, but of course feel free to shop around:
Stainless Steel | Ceramic* | Cast Iron
*it says “non-stick” in the description, but don’t worry, it’s ceramic, not Teflon etc, and is safe
Bonus: rice cooker with stainless steel inner pot
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Recommended
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
Staring At The Sun – by Dr. Irvin Yalom
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
A quick note first: there are two editions of this book; the content is the same, but the cover is different. So if in your region it has a bright yellow cover and the subtitle is the excitable “Overcoming The Terror Of Death” rather than the more measured “Being At Peace With Your Own Mortality”, that is why; different regional publishers made different choices.
For most of us, dying is the last thing we want to do. We may fear it; we may ignore it; we may try to beat it—but it’s a constant existential threat whether we want it or not.
This book is about “death anxiety”, either direct (conscious fear of impending death) or sublimated (not necessarily realising what we’re avoiding thinking about it). In its broadest sense, the fear of death can be described as rational. But angst about it probably won’t help, so this book looks to help us overcome that.
The style of the book is largely anecdotal, in which the author uses examples from his therapeutic practice to illustrate ways in which the fear of death can manifest, and ways in which it can be managed healthily.
Subjective criticism: while this author developed existential therapy, many of the ideas in this book lean heavily on the psychodynamic approach derived from Freud, and this reviewer isn’t a fan of that. But nevertheless, many of the examples here are thought-provoking and useful, so it is not too strong a criticism.
Bottom line: there are many ways to manage one’s mortality, and this book brings attention to a range of possibilities.
Click here to check out Staring At The Sun, and manage your mortality!
Share This Post
The Blue Zones Kitchen – by Dan Buettner
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
We’ve previously reviewed Buettner’s other book, The Blue Zones: 9 Lessons For Living Longer From The People Who’ve Lived The Longest, and with this one, it’s now time to focus on the dietary aspect.
As the title and subtitle promises, we get 100 recipes, inspired by Blue Zone cuisines. The recipes themselves have been tweaked a little for maximum healthiness, eliminating some ingredients that do crop up in the Blue Zones but are exceptions to their higher average healthiness rather than the rule.
The recipes are arranged by geographic zone rather than by meal type, so it might take a full read-through before knowing where to find everything, but it makes it a very enjoyable “coffee-table book” to browse, as well as being practical in the kitchen. The ingredients are mostly easy to find globally, and most can be acquired at a large supermarket and/or health food store. In the case of substitutions, most are obvious, e.g. if you don’t have wild fennel where you are, use cultivated, for example.
In the category of criticism, it appears that Buettner is very unfamiliar with spices, and so has skipped them almost entirely. We at 10almonds could never skip them, and heartily recommend adding your own spices, for their health benefits and flavors. It may take a little experimentation to know what will work with what recipes, but if you’re accustomed to cooking with spices normally, it’s unlikely that you’ll err by going with your heart here.
Bottom line: we’d give this book a once-over for spice additions, but aside from that, it’s a fine book of cuisine-by-location cooking.
Click here to check out The Blue Zones Kitchen, and get cooking into your own three digits!
Share This Post
Health Simplified – by Daniel Cottmeyer
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
Health Simplified – by Daniel Cottmeyer
A lot of books focus on the most marketable aspects of health, such as fat loss or muscle gain. Instead, Cottmeyer takes a “birds-eye-view” of health in all its aspects, and then boils it down to the most critical key parts.
Rather than giving a science-dense tome that nobody reads, or a light motivational piece that everyone reads but it amounts to “you can do it!”, here we get substance… but in a digestible form.
Which we at 10almonds love.
The book presents a simple action plan to:
- Improve your relationship with food/exercise
- Actually get better sleep
- Understand how nutrition really works
- Set up helpful habits that are workable and sustainable
- Bring these components together synergistically
Bottom line: if you’re going to buy only one health/fitness book, this is a fine contender.
Share This Post
Related Posts
Healing After Loss – by Martha Hickman
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
Mental health is also just health, and this book’s about an underexamined area of mental health. We say “underexamined”, because for something that affects almost everyone sooner or later, there’s not nearly so much science being done about it as other areas of mental health.
This is not a book of science per se, but it is a very useful one. The format is:
Each calendar day of the year, there’s a daily reflection, consisting of:
- A one-liner insight about grief, quoted from somebody
- A page of thoughts about this
- A one-liner summary, often formulated as a piece of advice
The book is not religious in content, though the author does occasionally make reference to God, only in the most abstract way that shouldn’t be offputting to any but the most stridently anti-religious readers.
Bottom line: if this is a subject near to your heart, then you will almost certainly benefit from this daily reader.
Click here to check out Healing After Loss, and indeed heal after loss
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
Small Pleasures – by Ryan Riley
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
When Hippocrates said “let food be thy medicine, and let medicine be thy food”, he may or may not have had this book in mind.
In terms of healthiness, this one’s not the very most nutritionist-approved recipe book we’ve ever reviewed. It’s not bad, to be clear!
But the physical health aspect is secondary to the mental health aspects, in this one, as you’ll see. And as we say, “mental health is also just health”.
The book is divided into three sections:
- Comfort—for when you feel at your worst, for when eating is a chore, for when something familiar and reassuring will bring you solace. Here we find flavor and simplicity; pastas, eggs, stews, potato dishes, and the like.
- Restoration—for when your energy needs reawakening. Here we find flavors fresh and tangy, enlivening and bright. Things to make you feel alive.
- Pleasure—while there’s little in the way of health-food here, the author describes the dishes in this section as “a love letter to yourself; they tell you that you’re special as you ready yourself to return to the world”.
And sometimes, just sometimes, we probably all need a little of that.
Bottom line: if you’d like to bring a little more joie de vivre to your cuisine, this book can do that.
Click here to check out Small Pleasures, and rekindle joy in your kitchen!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
Exercised – by Dr. Daniel Lieberman
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
Surely the title is taking liberties? We must have evolved to exercise, right? Not exactly.
We evolved to conserve energy. Our strength-to-weight ratio is generally unimpressive, we cannot casually hang in trees, and we spend a third of our lives asleep.
Strengths that we do have, however, include a large brain and a versatile gut perfect for opportunism. Again, not the indicators of being evolved for exercise.
So, Dr. Lieberman tells us, if we’re not inclined to get up and go, that’s quite natural. So, why does it feel good when we do get up and go?
This book covers a lot of the “this not that” aspects of exercise. By this we mean: ways that we can work with or against our bodies, for both physical and psychological fulfilment.
There’s an emphasis on such things as:
- movement without excessive exertion
- persistence being more important than power
- strength-building but only so far as is helpful to us
…and many other factors that you won’t generally see on your gym’s motivational posters
Bottom line: this book is for all those who have felt “exercise is not for me” but would also like the benefits of exercise. It turns out that there’s a best-of-both-worlds sweet spot!
Click here to check out Exercised and get working with your body rather than against it!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
