Large intestine at 68 degrees: Stir-fry

Thick fat wall is the point — ask for well-cleaned pieces. Large intestine. Instead of the milky gop of the small intestine it carries a thick fat sheet that butchers fold inward, so oil keeps rendering the whole time it cooks. The fattiest 100 g in this atlas — a few pieces are a serving.

Fat folded in evenly. A lump on one side will scorch while the rest stays pale. Colour, sinew, where the fat sits, and thickness are what you check before you pay. Ask for the thickness that matches “Stir-fry.” Use 68 degrees and 68 when you cook. Salt after you know the job. Do not play with undercooked meat.

At the counter, read the use on Large intestine before the photograph. 68 degrees is the internal heat, “Stir-fry” is the dish, and 68 is the stage of the fire. Marbling alone does not split stew from grill. Eat it before the fat renders and it turns heavy. Keep going until the surface browns and shrinks.