Tuna as meat: a butcher’s map written in muscle, not land animals at : the main line · 455

Otoro sits in the richest belly territory; chutoro bridges; akami is the leaner locomotive muscle. Price usually follows melt and scarcity, not moral superiority. Kama (collar) and other blocks add geometry the way chuck and plate complicate a beef side — more than three words fit on a menu.

Bright red sells, but handling, freeze history and species matter. Brown edges, ammonia notes or mushy fibre are quality signals no nickname can save. Some markets stamp or brand tuna; many still rely on the cutter’s eye the way old-school butchers graded beef before national systems.

Steak logic worships Maillard crust. Sashimi logic worships clean fat melt at body temperature and aroma without smoke. Both are legitimate meat experiences. When you do sear tuna, you are borrowing beef technique on a leaner clock — centres stay rare by design more often than chuck roast ever would.