Flank vs Sirloin Cap — What's the Difference?
Quick Answer
Flank (flank steak) and Sirloin Cap (sirloin cap) are not the same cut: Flank is flank primal (abdominal flank steak); Sirloin Cap is sirloin primal (top sirloin cap (coulotte)).
Canonical entities: Flank · Sirloin Cap
Side-by-side
| flank | sirloin cap | |
|---|---|---|
| Primal | flank | sirloin |
| Muscle / location | abdominal flank steak | top sirloin cap (coulotte) |
| Character | Long, fibrous abdominal cut; benefits from slicing across the grain. | Triangular cap on the top sirloin; prized as picanha in Brazil. |
Key differences
- Different primals: flank vs sirloin.
- 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
Flank
Pick Flank when you want its specific marbling/texture profile: Long, fibrous abdominal cut; benefits from slicing across the grain.
Sirloin Cap
Pick Sirloin Cap when its primal/muscle traits fit the dish: Triangular cap on the top sirloin; prized as picanha in Brazil.
Flank and Sirloin Cap are different canonical muscles/primals: Flank is flank (abdominal flank steak); Sirloin Cap is sirloin (top sirloin cap (coulotte)).
Choose based on tenderness, marbling, grain direction, and how you plan to cook (sear vs braise vs slice thin).
Read the full guides: flank (what-is) · sirloin cap (what-is) · flank hub · sirloin cap hub