This Is NOT Real Stainless Steel (Even Though It Says 18/10)

Added: 2026-05-12

[00:00:00]The pen in your cabinet has a number stamped on the bottom.

[00:00:05]18/10.

[00:00:07]The box said it. The salesman repeated it when you bought it. You thought it meant something. You thought there was a regulator somewhere, a test, an inspector who walked the line and signed off on the metal.

[00:00:22]There is not.

[00:00:25]That number is a marketing term. It is not a federal standard, not a USDA grade, not an FDA classification.

[00:00:35]It is a stamp the manufacturer puts on the bottom of the pen because the manufacturer chose to put it there.

[00:00:42]Nobody verified it. Nobody tested it.

[00:00:45]Nobody walked through that factory and pulled a sample to check the chromium and the nickel.

[00:00:51]The pan you bought may contain exactly what the box said or it may contain something else entirely. There is no way to tell from looking. The import industry has been counting on that for over 15 years. Today I am going to show you what that number actually meant when it was an honest term and what it does not mean now. I will explain why the cheap stainless set at the warehouse store may contain less nickel than your grandmother's flatear.

[00:01:25]At the end, I will give you three tests you can run on your own kitchen counter that tell you in less than a day whether the pen in your hand is what the label said.

[00:01:36]Halfway through, I will explain why the magnet test everybody recommends on the internet is completely wrong.

[00:01:45]Stay with me.

[00:01:48]Let me take you back to the 1920s.

[00:01:50]In a steel mill outside Pittsburgh, metallurgists were working on a problem that had haunted cookware for a century.

[00:01:58]Iron rusted. Copper poisoned acidic foods. Tin coatings flaked off. They wanted a metal that did not stain, did not corrode, and did not contaminate the food touching it.

[00:02:10]What they landed on was a recipe.

[00:02:13]18% chromium for the rust resistance, 10% nickel for the structural strength and the resistance to acid. The remaining 72% was iron with trace amounts of carbon and manganese. The recipe was given an industrial classification type 304 300 series ostanitic the standard food contact stainless. It worked. By the 1950s, every American restaurant kitchen, hospital cafeteria, and high school lunchroom was using 304 stainless pots, pans, sinks, prep counters, flatear. The metal was non-reactive, dishwasher safe, durable enough to outlast the building it sat in.

[00:03:00]Cookware companies started stamping the bottom of their products with a shorthand version of the recipe. 18/10, 18% chromium, 10% nickel. The same recipe trusted scaled down to the home kitchen.

[00:03:18]For decades, that stamp meant something.

[00:03:21]Visin arter Farberware and the small Pennsylvania metal shops that made cookware before consolidation were all buying steel from American mills that ran composition tests on every batch. The stamp was not a federal certification. It was a manufacturer's word. And in 1965, a manufacturer's word in this country was usually good.

[00:03:47]Now, we get to the part that nobody at the cookware store will tell you.

[00:03:52]There is no federal law in the United States that requires a pan with that stamp to actually contain 10% nickel.

[00:04:00]No agency tests it. No inspector pulls samples off the assembly line. The FDA regulates the food contact surface of the pan. It has rules about how much nickel can leech into food. It does not have rules about what the metal is actually made of. The USDA inspects food, not pans.

[00:04:23]The Department of Commerce regulates labeling claims like made in USA, but it does not test metallergy.

[00:04:31]The stamp is what lawyers call an industry standard term.

[00:04:36]It exists because the industry uses it, not because anybody has been verifying it. When a Chinese factory in Guangdong stamps those numbers on the bottom of a pan and ships it to a Cincinnati warehouse, no customs official runs a chemical analysis on the metal.

[00:04:55]The pan walks into the country on its own paperwork.

[00:04:59]A second grade alloy can carry the same stamp as a first grade alloy and nobody at the port knows the difference.

[00:05:07]The pans on the shelves at your big box store come from somewhere between three and five major Chinese factories.

[00:05:14]The same factories supply quisin art, Tfile, and 20 other brand names you have heard of. The brand on the box is a sticker. The metal underneath is whatever the buyer ordered. Some buyers order 304.

[00:05:29]Some buyers order 304 for the cookware that goes into the box and ships to high-end stores. And the same buyers with the same brand name order something cheaper for the cookware that ships to the discount aisles.

[00:05:42]Same factory, same press, same packaging, different metal.

[00:05:50]The cheaper metal has its own number, type 201.

[00:05:55]201itic stainless, just like 304.

[00:06:00]It looks identical. It polishes the same. It feels identical in your hand.

[00:06:06]To the eye, you cannot tell them apart.

[00:06:09]What is different is what is inside. 2 01 drops the nickel from 10% down to four or five. To stabilize the metal without that much nickel, the steel maker increases the manganese. Manganese is cheaper than nickel. In the mid 2000s, when nickel prices spiked on the London Metal Exchange and hit record highs, 2011 became the steel of choice for lowcost Chinese cookware factories.

[00:06:35]By 2015, it was the dominant grade in the cheap import bracket.

[00:06:41]By now, it is everywhere. You can find it on the bottom shelf at Walmart. You can find it in the discount sets at TJ Maxx. You can find it in the $70 Amazon set whose brand name you cannot pronounce. The packaging says 18/10 stainless in big letters across the front. The pan, if you sent a sample to a metallurgical lab, would test as 2011, about 5% nickel, about 12% manganese, nothing close to 10 and 10.

[00:07:15]Why does that matter for the cooking?

[00:07:18]201 corrods faster. 304 does not pit when you simmer tomato sauce in it. 201 pit.

[00:07:27]The pits are microscopic at first and they show up after about a year of acidic cooking. Vinegar, citrus, wine, tomato.

[00:07:38]Anywhere the metal pits, it is exposed.

[00:07:41]Anywhere it is exposed, it leeches.

[00:07:46]304 leeches. a small wellstudied amount of nickel and chromium. Both are monitored by the FDA.

[00:07:53]Both stay below the limits the agency said decades ago.

[00:07:58]201 leeches, nickel, chromium, and manganese.

[00:08:02]Manganese is what the metallergists I have been reading call a heavy metal of concern.

[00:08:08]Trace amounts in food are normal. Larger amounts are not.

[00:08:13]Long-term exposure has been linked in occupational studies to neurological symptoms in welders and metal workers who breathe the dust for decades. The pans on the cheap shelf are not labeled 2011. They carry the same stamp as the real thing because 2011 does not have the same reputation. The FDA regulates leeching limits, not alloy composition.

[00:08:36]So, the cheaper pan gets the better number and the buyer never knows. Here is something the internet is going to tell you. Test it with a magnet. If the magnet does not stick, it is real 304.

[00:08:49]If the magnet sticks, the pan is fake.

[00:08:53]That is wrong. Put the magnet down. Both 304 and 2011 are alitic stainless. Both are non-magnetic. A magnet does not distinguish between them. The magnet test only tells you the difference between alenitic stainless which is 304 and 2011 and feritic stainless which is 430.

[00:09:15]430 has no nickel at all and is used for the bottom layer of induction compatible cookware.

[00:09:22]The bottom of a clad pan is feritic so the induction coil can grip it.

[00:09:27]The cooking surface is oinitic.

[00:09:30]Your pan is both magnetic on the outside and non-magnetic on the inside. Every quality stainless pan in your kitchen behaves this way. The magnet test on the cooking surface tells you almost nothing about the grade. It is the test the magnet test bloggers run because it is the only test they can run with a magnet from their refrigerator.

[00:09:53]It is also useless.

[00:09:56]There is another layer to this. China has its own food safety standard for stainless steel called GB4806 part 9.

[00:10:06]The Chinese standard allows up to 4/10 of a milligram of nickel to leech per kilogram of food in a 4-hour acid soap test.

[00:10:15]The American FDA limit derived from the same kind of test is 1/10enth of a millig per kilogram.

[00:10:23]Four times more nickel leeching is acceptable in a Chinese domestic pan than in a pan sold within the FDA's jurisdiction.

[00:10:32]The pans built for the Chinese domestic market are legal in China.

[00:10:37]When a factory builds the same pan for the American market, technically they are supposed to meet the stricter American standard.

[00:10:45]There is no border test.

[00:10:48]There is no random pull at the customs warehouse. The facto's word is the only verification.

[00:10:55]If a factory is willing to put a fake stamp on a 201 pan, the same factory is willing to ship a Chinese spec pan into an American port. They are the same lie.

[00:11:07]They are the same person signing the same paperwork. And the importer in New York does not have a metallergical lab to check.

[00:11:17]If this is the kind of thing you want more of, subscribe.

[00:11:21]Somebody has to be reading the fine print on the bottom of the pan because the cookware department, the appliance store, the salesman, none of them are going to do it for you.

[00:11:36]A retired metallergist I have been reading up on, a man who spent 32 years running quality testing for an American flatwear company, said something I think about often.

[00:11:47]He said the era of honest markings ended when nickel prices made it cheaper for some importers to lie about the grade than to ship the real grade.

[00:11:58]He said his old company which used to test every batch of incoming steel with a spectrometer was sold to a private equity group. The new owners cut the metallurgy lab. They started taking the supplier's word for it. Within 5 years, he said the marking on the back of his old company's flatear was indistinguishable from the marking on the back of the cheap import sets sitting next to it on the shelf. Same number, different metal.

[00:12:29]He retired the year they closed the lab.

[00:12:32]That is what got me started on this. The number is still on the box. It used to mean something. It was a handshake between the company and the customer.

[00:12:43]Now the handshake is gone, but the number stayed.

[00:12:47]Nobody bothered to take it off. The acidic food problem is the one that should worry you the most. If you simmer tomato sauce on a Sunday, delaze a pan with red wine on a Tuesday, and squeeze lemon over a sauteed fish on a Thursday, you are running an acid bath against the metal three times a week.

[00:13:09]A real 304 pan handles this gracefully.

[00:13:13]A 2011 pan with the wrong stamp does not.

[00:13:17]Two things start happening in year two.

[00:13:21]The first is visual.

[00:13:24]Tiny dark pits show up on the cooking surface. They are not stains. They are corrosion.

[00:13:32]The pan surface will not polish back to mirror. The second is invisible.

[00:13:38]The metal is moving from the pan into the food. Not large amounts on any one meal. Trace amounts every meal. Over a decade of cooking the same family dinners, the dose adds up.

[00:13:53]I covered this in the metal in food video about quisin art. Different mechanism, same outcome. The cookware was never supposed to be the source of metal in your dinner. Now, here's what to do about it. There are three tests you can run on your own counter and three brands you can trust without running any test at all. Test number one, weight. Pick up the pan. A real 30410 in skillet standard triply construction weighs between 2 and 3 lb.

[00:14:25]Not 1 and 1/2, not one. 20 is about the same density as 304. But the manufacturers cutting nickel are usually cutting wall thickness, too. The cheap pan is lighter because there is less metal in it. If you pick up a 10-in pan and it feels like a feather, the metal is thin and the grade is probably what got cut along with it. Test number two, price math.

[00:14:52]A 10-in triply 304 pan made in America by a domestic mill lands in stores at 120 to $180.

[00:15:03]There are a few legitimate brands, Tremonina being one of them, that hit a lower price point using overseas mills and still ship real 304.

[00:15:13]But when an unknown brand with no published metallurgy stamps the label on a pan and sells it for $35, somebody substitute it somewhere. Usually it is the metal. Test number three, the vinegar soak.

[00:15:28]Pour an inch of plain white distilled vinegar into the pan. Leave it overnight, 12 hours. In a clean kitchen, no other ingredients added. In the morning, dump the vinegar and look at the cooking surface under good light at an angle. A real 304 pan looks the same as it did the night before. A 2011 pan after 12 hours of acid will show a faint pattern of pitting.

[00:15:56]A slight grayish discoloration where the vinegar pulled, a roughness you can feel with your fingertip in the worst spots.

[00:16:05]It is subtle.

[00:16:07]Hold the pan to a window in daylight. If the surface is uneven, the metal is not what the box says.

[00:16:16]Now, the brands.

[00:16:19]If you do not want to run any test, buy from a company that publishes its own metallergy.

[00:16:25]There are three I trust. Allclad American made in Canonsburg, Pennsylvania.

[00:16:32]The D3 and D5 lines are triply with a 304 interior. The company tests its own steel and the testing is documented.

[00:16:43]Their pans run 140 to $250 depending on the line and they will outlast you.

[00:16:52]Heritage steel made in Clarksville, Tennessee. familyowned five ply construction with a 316 interior which is even higher in nickel and contains malibdinum for additional corrosion resistance about $150 for a 10-in pan. Smaller company, Honest Company, Deer, Belgium. The Atlantis and Proline lines are 7 ply with a 304 interior made in a single factory in Belgium that has been making cookware since 1908.

[00:17:25]The pans are heavy, expensive, and lifetime products.

[00:17:30]About $350 for the basic skillet.

[00:17:34]I covered cookware in the five pieces still made right video.

[00:17:40]Same logic applies here.

[00:17:42]The brands that survive the cheapening cycle are the brands that publish what they are made of.

[00:17:48]The brands that hide it are usually hiding something. Now the math.

[00:17:55]A cheap stamped set at the warehouse store. $80 for 10 pieces. The pans warp by year two and pit by year four. You buy another set, another $80 by year 8.

[00:18:06]That is a third set. $240 over eight years for three sets of pans that were never what the label said. And the food coming off those pans every meal has been carrying trace metals you did not sign up for. A single AllClad 10-in skillet, $150.

[00:18:26]One pan, 40 years of cooking, under $4 per year.

[00:18:31]The same pan your daughter inherits. The same pan she does not have to replace.

[00:18:36]The cheap pan was never cheap. The math always knew. The label was a lie. The lie was made of a metal you cannot see.

[00:18:45]This is the math the industry praise.

[00:18:47]You never do. My grandmother had two pans on her stove.

[00:18:51]a cast iron skillet and a stainless steel saucepan with the words forged in America stamped on the underside.

[00:18:59]The saucepan was a wedding gift in 1952.

[00:19:03]It had no stamp on the bottom, no numbers.

[00:19:08]The company that made it took the recipe for granted.

[00:19:11]Of course, it was 304. What else would it be? She used that saucepan every Sunday. cream sauces, tomato sauces, soups, stews, lemon butter for fish on Friday. The pan never warped. The bottom never pitted.

[00:19:30]By the time it came to me, it was decades old, and the only mark on it was a small dent on the rim from being dropped in the sink. I still have it. I still cook in it.

[00:19:42]There is the dent and a slight fade on the wooden handle and otherwise it is the same pan it was the day she opened it. The number on her pan was an assumption. The number on the new pan is an advertisement. The metal is different. The honesty is different. The pan stays in your kitchen for 2 years instead of 40 because the people who built it took something out and counted on you not noticing.

[00:20:10]They did not make a mistake. They made a decision.

[00:20:14]Save 12 cents on the nickel.

[00:20:17]Hope you never check. You can still buy a real 304 pan. You just have to pay more and you have to know the brands. Or you can run a test on the cheap pan you already own and find out what you actually have. Either is worth doing.

[00:20:33]The pan is touching your food every day.

[00:20:35]You should know what it is. Now, I want to hear from you. Go to your stove right now. Pick up the pan you cooked with last night. Flip it over. Is there an 1810 stamp? Where did you buy that pan?

[00:20:49]How much did you pay? And if you have ever simmered tomato sauce in it, did you see any pits afterwards?

[00:20:58]Tell me in the comments. I read every comment. Thanks for watching.