I am Korean. I also hold a Fleischermeister — the German master butcher qualification — and I work in meat R&D. That combination means I spend my days looking at pork the way a German processor does, and my evenings eating it the way a Korean does. Those are not the same thing, and the gap between them is the most interesting thing about samgyeopsal.
In Germany, pork belly is Schweinebauch: a cut you cure, smoke, roast slowly or turn into bacon. Grilling it fresh in thick slices over fire, at the table, as the centre of a meal, would strike most German butchers as an odd use of it. In Korea it is the default. Koreans eat more pork belly per person than almost anyone, and the country imports large volumes of belly on top of what it produces, because domestic pigs cannot supply the demand for one cut.
So how did one cut end up carrying a national cuisine? The honest answer is that the story you have probably read is partly wrong.
The story everyone repeats
The standard account goes like this. In the 1970s Korea exported pork to Japan. The Japanese wanted lean cuts — loin and ham. The fatty belly nobody wanted stayed home, went cheap, and Koreans learned to love it out of thrift.
It is a good story. It is repeated in almost every English-language article about Korean barbecue. And Korean food historians have been picking holes in it for years.
- Even at the peak of the export years, lean cuts were not priced above belly in the domestic market. If belly were the leftover, the price gap should show up. It does not.
- Belly was itself exported. Korea shipped belly to Japan as bacon raw material in the early 1970s, and the cutting spec Korean processors use for samgyeopsal today descends from that export bacon spec. The modern shape of the cut is a legacy of exporting it, not of being stuck with it.
- Until branded pork arrived in the early 1990s, most Korean consumers did not buy by cut at all. You bought pork. The idea of ordering a specific muscle is newer than the dish.
What actually happened, as far as anyone can tell
It was a convergence rather than a cause.
Pigs became plentiful
The Saemaul (New Village) modernisation drive pushed pig farming hard through the 1970s. Herd sizes grew, feed improved, and pork stopped being an occasional food. Before that, pigs were often raised on scraps and pork had a reputation problem — a smell people associated with poorly fed animals.
Workers believed fat cleaned the lungs
Miners, construction crews and factory workers held that fatty pork "washes the dust from your throat" after a shift. Coal miners in particular ate belly for exactly this reason. There is no medical basis for it, but it was a genuine and widespread belief, and it attached fat specifically — not pork generally — to the end of a hard day.
The table got a burner
Portable gas burners and cast grill plates spread through restaurants in the late 1970s. That is the hinge. Before it, pork was cooked in a kitchen and brought out. After it, cooking happened at the table, which turned a cut of meat into an activity you do with other people for two hours. Samgyeopsal restaurants appeared in numbers from the late 1970s onward.
Then it became an institution
By the 1980s, rising wages and a growing eating-out culture made it the default after-work meal. In 2003, after foot-and-mouth outbreaks in 2000 and 2002 collapsed pork sales, a pig farmer in Paju and the Paju-Yeoncheon livestock cooperative invented Samgyeopsal Day on 3 March — 3/3, two threes for sam — to push demand back up. It stuck. Twenty-odd years later the supermarkets still run price wars on it every March.
So: not a leftover cut that people settled for. A cut that arrived in quantity at the moment Korea invented a way of eating together around fire, and then got institutionalised.
Every way Koreans actually eat it
"Samgyeopsal" on a menu is not one thing. These are the forms you will meet, and they are genuinely different eating experiences.
냉동삼겹살 — frozen samgyeopsal
Belly frozen and then sliced thin, usually 3 to 5mm, on a slicer that can only cut it that thin because it is frozen. It arrives at the table still stiff and curls dramatically on the grill.
This is the old-school form — what Korea ate in the 1980s before chilled distribution was reliable — and it has come back hard as a retro style. It cooks in about a minute a side, crisps rather than renders, and is usually the cheapest thing on the menu. Places doing this well serve it on a domed or tilted plate with kimchi and bean sprouts cooking in the run-off.
생삼겹살 / 냉장삼겹살 — fresh, chilled
Never frozen, cut thick: 10 to 15mm. This is the default at most restaurants now and it is what people mean by "good" samgyeopsal. Thickness is the whole point — enough mass that the fat has time to render while the lean stays juicy.
As a processor, chilled is where quality actually shows. Freezing damages muscle cells and you lose water on thaw, which is why frozen belly is sliced thin and cooked fast: you are working around drip loss rather than pretending it is not there.
오겹살 — five layers, skin on
The same belly with the rind left on, so you get a fifth layer. Jeju is most associated with it. The skin brings collagen and a chewy bite, and it needs lower heat and more time or it goes rubbery. It is a different dish, not a premium version of the same one.
통삼겹 — the whole slab
An uncut piece of belly grilled or roasted whole, then cut at the table once it is cooked. Far more forgiving than slices: the mass means the centre stays moist while the outside crusts. This is the form closest to what a German butcher would recognise, and the closest to Krustenbraten if the skin is on.
대패삼겹살 — shaved belly
Sliced to something like 1 to 2mm, so thin it drapes. Named after a carpenter's plane. Cooks in seconds, and is used as much in stir-fries, kimchi fried rice and budae-jjigae as on a grill.
벌집삼겹살 — honeycomb scored
Thick belly cross-hatched with a knife before grilling. The scoring opens the fat to the heat so it renders faster and crisps at the edges, and holds marinade. A restaurant technique rather than a home one.
짚불·솥뚜껑·연탄 — the fire underneath
Straw-fire belly (Jeolla province), belly cooked on an upturned cast-iron cauldron lid, belly over briquettes. All the same cut, all tasting noticeably different, because fat dripping onto different fuels produces different smoke. The briquette version is the one most worth seeking out.
Where all of this is on the animal
Before going further it helps to see the map. Every cut on this page comes from somewhere specific, and the place it comes from explains almost everything about how it eats — how much it worked, how much fat it carries, how long it wants on the grill. Tap a name to find it.
The pattern to notice: the big familiar cuts run along the back and underside, and almost every specialty cut is a small muscle at a junction — throat, jaw, the seam between neck and loin, the sheet dividing chest from abdomen. Those are the awkward places a butcher has to know how to reach.
What the Fleischermeister side of me would tell you
- Thickness is a bigger decision than grade. An average belly cut at 12mm beats a superb belly cut at 5mm on a table grill. Every time.
- Let the plate get properly hot. Meat on a warm plate sticks, tears, and steams in its own juice instead of browning. The browning is the Maillard reaction and it is where most grilled flavour comes from.
- Cut after searing, not before. Scissors come out once both faces have colour. Cut early and you open the fibres while they are contracting and the juice ends up on the plate.
- Do not chase well done on belly. Once the fat has rendered out there is no getting it back. Pull it when the edges are crisp and the centre still gives.
And now the part Koreans do not put on the English menu
Samgyeopsal is what everyone orders. It is not what people who eat a lot of Korean barbecue order any more.
There is a whole category called 특수부위 (teuksu-buwi) — "special parts". These are small muscles, a few hundred grams per animal, that a butcher has to know to find and that used to go into mince. Over the last fifteen years they have moved from offcut to premium, and a good specialist restaurant now sells more of these than belly.
I am not going to list them all at once. Open them one at a time — they are better as a discovery than as a table.
Five cuts, in the order I would introduce them to someone. Each one tells you how much of it exists per pig.
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01 Hangjeongsal 항정살 about 160 g per pig
The jowl — a small muscle from the throat. Menus sometimes translate it as "pork neck skin", which is misleading; there is no skin involved. The marbling looks more like wagyu than pork, and the texture is dense and slightly crunchy in a way no other pork cut manages. Cut thinner than belly, 5 to 8mm, because it is rich. Order it first, while the grill is clean.
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02 Galmaegisal 갈매기살 about 260 g per pig — only two strips exist
The diaphragm — the sheet of muscle that separates chest from abdomen. The Korean name has nothing to do with seagulls (갈매기); it is a corruption of 가로막, meaning the crosswise membrane. Two strips per animal, which is why it is priced where it is. Lean, deeply beefy for pork, and it wants a short hot cook. Overcook it and it turns to rope.
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03 Gabrisal 가브리살 about 440 g per pig
The cap muscle sitting on top of the loin, between loin and neck — sometimes called 등심덧살. It carries a seam of fat that runs right through it, so it eats richer than loin while staying tender. The most approachable of the specialty cuts and the one I hand to someone who says they do not like fatty pork.
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04 Hangjeong's neighbours: Kkodeulsal and Deolmisal 꼬들살 · 덜미살 a few hundred grams each
Cuts from around the neck and jaw with more connective tissue, sold for exactly that reason — 꼬들 describes a springy, resistant chew. They reward slightly longer cooking than hangjeongsal, and they are the cuts regulars order when they want something to chew rather than something to melt.
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05 Ppolsal 뽈살 roughly 100 g per pig
The cheek. Tiny, worked hard by the animal all its life, and therefore full of collagen. On a grill it wants patience; braised, it is extraordinary. If a restaurant has it, it is a restaurant that buys whole animals rather than boxed primals, which tells you something about everything else on the menu.
That is all five. Now go and order one.
The pattern is worth naming: every one of these is scarce because of anatomy, not because of grading. There is no way to farm more diaphragm. That is the whole economics of 특수부위, and it is why the prices behave the way they do.
If you only take one thing
Order samgyeopsal because it is the reference point and because the ritual around it is the actual dish. Then order one specialty cut alongside it, early, while the grill is clean. That single comparison — a familiar thick slice of belly next to 160 grams of jowl — teaches you more about pork in five minutes than any amount of reading, including this.
Questions people actually ask
Is the "Japan took the lean cuts" story simply false?
Not false so much as too tidy. Export demand shaped the cut's specification and the scale of pig farming, but the price evidence does not support belly being an unwanted leftover, and Korean consumers were not buying by cut in that era anyway.
Frozen or fresh — which should I order?
Fresh thick-cut if you want the best version of the dish. Frozen thin-cut if you want the cheap, fast, nostalgic version, which is its own good thing and not a downgrade.
Why is Korean pork belly so expensive compared to other countries?
Because domestic demand for one cut vastly exceeds what domestic pigs supply, so a large share is imported and the cut carries a premium the rest of the carcass does not.
What is the difference between samgyeopsal and bacon?
The same primal. Bacon is cured and usually smoked; samgyeopsal is fresh. The Korean cutting spec is descended from an export bacon spec, which is why the shape is familiar to anyone who has handled a bacon slab.
Do I need to eat it in a lettuce wrap?
No. Ssam is one good way — the leaf cuts the fat, the ssamjang adds salt and funk — but a piece straight off the grill with sesame oil and salt is entirely normal.
Sources
History and disputed points drawn from Korean food-industry writing, including Farm Insight on when Koreans began eating samgyeopsal and its reassessment of the standard narrative; Korea Exposé on the origins of samgyeopsal; the Samgyeopsal Day entry for the 2003 origin; and Kyunghyang Shinmun on specialty pork cuts for per-animal yields. Cutting, thickness and handling notes are my own.