Pin bones are located along the center of a fish fillet, running from the collarbone down approximately two-thirds of its length. Their exact placement and number vary depending on the fish species and size. For example, a salmon fillet might contain 25 to 30 pin bones.
Locating Pin Bones
Several methods help locate these small, sometimes difficult-to-see bones:
- Feel for them: Gently run your fingers along the flesh of the fillet. You'll feel the pin bones just beneath the surface.
- Visual Inspection: Look closely at the fillet, particularly along the central line. Sometimes, you can see them, even without touching the fish.
- Following the Red Line: In some fish, a faint red line may be visible along the fillet; this line often follows the path of the pin bones.
Types of Fish with Pin Bones
Pin bones aren't found in all fish. Larger species like salmon, trout, and walleye commonly possess them. Smaller fish, such as panfish, may not have pin bones. Technically, pin bones aren't true bones but calcified ligaments which offer support and structure to the fish's muscles.
Removing Pin Bones
While some people choose to leave the pin bones in, others find it preferable to remove them. Tools like fish bone pliers or tweezers are effective for this task. A sharp knife may also work, but extra care is required to avoid damaging the fillet. Chef Nicholas Gavin provides a demonstration on how to efficiently remove them in a video linked above.