Sirloin Cap vs Sirloin Flap — What's the Difference?
Quick Answer
Sirloin Cap (sirloin cap) and Sirloin Flap (sirloin flap) are not the same cut: Sirloin Cap is sirloin primal (top sirloin cap (coulotte)); Sirloin Flap is sirloin primal (sirloin flap / bottom sirloin flap).
Canonical entities: Sirloin Cap · Sirloin Flap
Side-by-side
| sirloin cap | sirloin flap | |
|---|---|---|
| Primal | sirloin | sirloin |
| Muscle / location | top sirloin cap (coulotte) | sirloin flap / bottom sirloin flap |
| Character | Triangular cap on the top sirloin; prized as picanha in Brazil. | Thin, loose-grained flap from the bottom sirloin; overlaps skirt/flank in some regional breakdowns. |
Key differences
- Texture and slicing: compare fibrous, grain-heavy cuts vs more tender steak-style muscles based on each cut’s description.
- Retail naming diverges by country—always map through a canonical cut when translating menus or labels.
When to use each
Sirloin Cap
Pick Sirloin Cap when you want its specific marbling/texture profile: Triangular cap on the top sirloin; prized as picanha in Brazil.
Sirloin Flap
Pick Sirloin Flap when its primal/muscle traits fit the dish: Thin, loose-grained flap from the bottom sirloin; overlaps skirt/flank in some regional breakdowns.
Sirloin Cap and Sirloin Flap are different canonical muscles/primals: Sirloin Cap is sirloin (top sirloin cap (coulotte)); Sirloin Flap is sirloin (sirloin flap / bottom sirloin flap).
Choose based on tenderness, marbling, grain direction, and how you plan to cook (sear vs braise vs slice thin).
Read the full guides: sirloin cap (what-is) · sirloin flap (what-is) · sirloin cap hub · sirloin flap hub