A large triangular shell,
a thick and chewy adductor muscle,
and a rich, savory flavor that fills your mouth with every bite.
The pen shell (Atrina pectinata) is a large bivalve mollusk known for its long, triangular shell. It is commonly found along the western and southern coasts of Korea and is highly valued for its thick and flavorful adductor muscle, making it a premium seafood ingredient.
๐ Basic Information
- Scientific Name: Atrina pectinata
- Class: Bivalvia
- Habitat: Sandy or muddy coastal seabeds
- Size: Can exceed 30 cm in length
- Lifestyle: Lives partially buried in the seafloor
๐ The name โpen shellโ comes from its long, pointed shape that resembles a quill or pen.
๐ Physical Characteristics
โ๏ธ Large triangular shell
โ๏ธ Thick and sturdy outer shell
โ๏ธ Prominent adductor muscle inside
The adductor muscle, which opens and closes the shell, is the most prized and delicious part.
๐ Habitat & Ecology
Pen shells live partially buried in the seabed.
- Feed by filtering plankton
- Inhabit relatively deeper coastal waters
- Available as both wild-caught and farmed seafood
They thrive in clean marine environments and are sensitive to water quality.
๐ฝ๏ธ Taste & Nutrition
The adductor muscle of the pen shell is known for its firm texture and nutty sweetness.
๐ Nutritional Benefits
- High in protein
- Low in fat
- Rich in taurine
- Contains zinc, iron, and B vitamins
โจ The more you chew, the sweeter and more savory the flavor becomes.
๐ด Popular Dishes
- Grilled pen shell adductor muscle
- Garlic butter pen shell
- Spicy marinated slices
- Ingredient in seafood stews
Lightly grilling over charcoal enhances both aroma and texture.
โ ๏ธ Preparation & Storage Tips
โ๏ธ Remove internal organs around the muscle
โ๏ธ Rinse thoroughly under running water
โ๏ธ Avoid overcooking to prevent toughness
Quick cooking over high heat helps maintain tenderness.
The pen shell is:
๐ A large and striking bivalve
๐ A filter feeder from clean coastal waters
๐ฝ๏ธ A premium seafood known for its chewy, flavorful muscle
Within each thick slice of its adductor muscle
lies the rich, savory essence of the sea.
๋๊ธ ๋จ๊ธฐ๊ธฐ