Ogyeopsal — Five-Layer Pork Belly (오겹살)

Ogyeopsal as a specific quality designation emerged from the Korean pork culture of the late 20th century as increasing prosperity made premium pork belly selection a consumer practice; Jeju heuk dwaeji naturally produces ogyeopsal-quality belly

Ogyeopsal (오겹살, 'five-layered meat') refers to pork belly with five visible alternating layers of fat and lean muscle when viewed from the cut end — a butchery quality grade rather than a specific cut, indicating a well-marbled belly with distinct layer definition. Standard samgyeopsal (삼겹살, 'three-layered') shows three layers; ogyeopsal's five layers produce more textural complexity in each slice as the multiple fat layers render through grilling, basting the intervening lean sections. Ogyeopsal typically comes from pigs raised longer or with specific genetic marbling characteristics.

Ogyeopsal grilled with patience over charcoal, eaten with gireum-jang and fermented kimchi, represents Korean pork BBQ at its most refined — the five-layer cross-section visible in each bite is an aesthetic as well as a flavour marker of quality.