Is It Always Necessary?
Not necessarily. It largely depends on the size of the shrimp and how they’re being used.
With small shrimp, the digestive tract is often barely visible and commonly left intact, especially in mixed dishes. With larger shrimp, however, it’s more pronounced, and removing it is often preferred for both aesthetic and flavor reasons.
This is also why many shrimp are sold already peeled and deveined, making preparation easier.
A Detail You Can Ignore Without Worry
You may also notice another thin line on the shrimp’s underside. This is a natural blood vessel and contains no residue. There’s no need to remove it—only the dark line along the back is relevant.
