Blue Mussels

Species Information

Blue mussels are distributed worldwide in most polar and temperate waters. Off North America, they occur from Canada to North Carolina.

Projecting out from between the shells on one side is a bundle of tough, brown fibers called the byssal threads, more commonly known as the beard. Mussels use these fibers to anchor to rocks, pilings, and other mussels. This species may grow to 4 inches long and can often be found living with barnacles and seaweed on rocks and pilings in brackish waters.

Cooking & Handling

If possible, cook mussels the day you buy them. Mussels will stay alive longest if their beard is attached. Refrigerate covered with a damp towel up to 2 days. Store frozen mussels up to 3 months. Thaw in the refrigerator and eat within 2 days.

Blue mussels are a good source of Vitamin C, Thiamin, Riboflavin, Folate, Potassium and Zinc, and a very good source of Protein, Vitamin B12, Iron, Phosphorus, Manganese and Selenium.

The best way to cook mussels is to steam them. Steaming them with clams is a heavenly combination. They are best steamed in water, wine or cream broth seasoned with herbs and garlic.

Mussels have beard or byssus threads, which they use to anchor themselves to a growing medium. The beard should be removed just prior to cooking.

Flavors that work well with blue mussels are beer, celery, cream, curry, garlic, leek, mustard, potato, saffron, shallot, spinach, tarragon, tomato, white vermouth and white wine.

Cooking Methods

Broil, Sauté, Smoke, Steam

Global Supply

Canada, China, France, Italy, South Korea, Spain, United Kingdom, United States

Seasonal Availability

Fresh and frozen blue mussels are available year-round. Blue mussels meats are thinner for a few weeks after summer spawning.

Did You Know?

Mussels are farmed on ropes or in mesh bags suspended from rafts.

Bags or containers or mussels should display the license number of the shipper, as required by the National Shellfish Sanitation Program. While there are many places where mussels can be gathered wild, these can be dangerous to eat because mussels are susceptible to pollution and disease.

Scientific Name

Mytilus edulis

Market Name


Common Names

Blue mussel, bay mussel


Greenshell mussels, hardshell clams, softshell clams

Raw Characteristics

  • smooth, bluish black shell, elongated and somewhat pear-shaped
  • inside of the shell is pearly violet or white
  • white to orange meat
  • market size 2–3 inches

Cooked Characteristics

  • rich, mild, sweet, juicy flavor
  • medium texture


French: moule commune
German: miesmuschel
Italian: cozza
Japanese: murasakiigai
Spanish: mejillón