Clams cockles

Types of clams cockles

Clams and cockles are bivalve mollusks highly prized as seafood. They belong to different genera and family groups but share some similar characteristics. Both are sought after for their tender, flavorful meat and are commonly found in sandy or muddy coastal habitats. Clams are more diverse in shell shape, while cockles have heart-shaped, ridged shells. Here’s a comprehensive list of the types:

• Hard clams

  Hard clams are often referred to by their market names, which include cherrystone and littleneck clams. They are medium to large-sized clams with a thick, hard shell. This shell is more rounded and oval compared to other clams. Hard clams are found in shallow waters along the eastern United States coast. They are known for their firm, chewy meat and slightly briny, sweet flavor.

• Soft-shell clams

  Soft-shell clams have a softer, thinner shell that is not as hard or elongated, with a more irregular shape. They are also known as steamers, long necks, or belly clams. They are typically found buried in the sand along the Atlantic coast of the United States. Their meat is tender and slightly sweet, with a subtle ocean flavor.

• Quahogs

  Quahogs refers to eastern hard clams. They are known as purple-hinged clams when they are large and mature. Quahogs have a rounded, thick shell with prominent concentric ridges. They are found on the Atlantic coast of the United States and they are often gray or white, with a purple lining inside the shell. The flavor depends on their size, younger ones are sweet and tender, while larger quahogs are more robust and slightly chewy.

• Geoduck clams

  Geoduck clams are unique and recognizable due to their large size and protruding siphon, which can sometimes be several inches long. They have a brown, soft-skinned shell with a hard, white inner shell. They are primarily found along the Pacific coast of North America. Geoduck clams have a sweet, delicate flavor and a very firm texture.

• Lingula clams

  Lingula clams are known as tongue oysters or lantern clams. They have a relatively primitive, biconical shell that is more shellfish-like rather than hard and is usually fleshy and not very hard or smooth. The shell can be brown to white in color. Lingula clams are found on sandy sea floors around the world. Unlike most clams, they do not burrow deeply and can be found at depths of up to 200 meters. They have a slightly nutty, mild flavor and a tender yet somewhat tough texture.

• Cockles

  Cockles are small to medium-sized bivalve mollusks with a heart-shaped, ridged shell. The shell's surface has distinct radial ribs or ridges, giving it a curved, textured appearance. Most common cockles are the Pacific cockle and Atlantic cockle. Cockles are found in intertidal zones around the world. Cockles have a slightly briny, sweet flavor with a tender, chewy texture.

How to use clams cockles

• Culinary uses

  Clams and cockles are popular seafood ingredients as they can be eaten raw or cooked. They are often used in soups, such as clam chowder or cockle soup. Cockles are usually pickled, sautéed, or roasted. They are both also used in pasta dishes like spaghetti alle vongole and clam linguine.

• Economic uses

  Clams and cockles are harvested commercially for the seafood market. They also offer sources of income for small-scale fishers. They are sold fresh, frozen, or processed in various forms, including canned or dried. This makes them available in diverse global markets.

• Nutritional Value

  Both clams and cockles are highly nutritious. They are a great source of lean, high-quality protein. They are low in fat and calories, making them a healthy choice for those who need dietary protein. They are also rich in vitamins and minerals like vitamin B12, iron, zinc, and omega-3 fatty acids.

• Recreational uses

  Clam digging and cockle gathering are popular recreational activities in many coastal regions. They provide people with outdoor enjoyment and opportunities for learning about marine ecosystems. This also allows people to engage in sustainable, low-impact harvesting practices while supporting local food systems.

• Environmental uses

  Clams and cockles play critical roles in their natural habitats. They filter and clean the water by feeding on phytoplankton and detritus. This helps improve water quality in coastal ecosystems. They both are also important food sources for wildlife. These include shorebirds, fish, and other marine predators. When they die, their shells contribute to the formation of shell gravel that provides habitats for a variety of intertidal organisms.

Benefits of clams cockles

• Great source of lean protein

  Clams and cockles are high in protein to support muscle growth, repair, and overall body function. This makes them a great source of lean protein. They are low in fat so they make a heart-healthy option that helps maintain a healthy weight without excess calories.

• Low in calories

  Clams and cockles are low in calories, making them suitable for those looking to manage their weight. They provide essential nutrients without offering too many calories. This helps people feel full without consuming extra calories.

• Rich in vitamins and minerals

  Clams and cockles are rich in essential vitamins and minerals. These include vitamin B12 for nerve function and red blood cell formation, iron for oxygen transport in the body, and zinc for immune support and tissue repair. Zinc also helps with enzyme function and protein synthesis. They both also contain selenium, which acts as an antioxidant to protect cells from damage.

• Supports heart health

  Clams and cockles have omega-3 fatty acids that support heart health. These fatty acids help reduce inflammation, lower blood pressure, and decrease the risk of heart disease. The combination of protein, vitamins, and minerals in clams and cockles promotes cardiovascular health.

• Boosts immune system

  The zinc content in clams and cockles supports a healthy immune system. It helps the body’s immune response and is crucial for immune cell function and development. The vitamin B12 in clams and cockles also supports immune function by aiding in the production of red blood cells and keeping the body’s energy levels up.

• Enhanced bone health

  Clams and cockles contain important minerals for maintaining strong bones. These include calcium and phosphorus. They support bone density and reduce the risk of osteoporosis. The combination of protein and minerals in clams and cockles contributes to overall bone health, especially in older adults who may be at risk for bone loss.

• Improved muscle function

  The high protein content in clams and cockles helps build and repair muscles. It provides amino acids necessary for muscle growth. The minerals in clams and cockles, such as iron and magnesium, aid in muscle function and prevent muscle cramping during exercise.

How to store clams cockles

Properly storing clams and cockles can help maintain their freshness, flavor, and safety for consumption. Here are the ways to do it effectively:

• Refrigeration

  Fresh clams and cockles should be stored in the refrigerator at a temperature of 40°F (4°C) or slightly colder. This helps to keep them alive and fresh until they are ready to be cooked or eaten. It is important to note that a prolonged freezing can cause a loss of texture and flavor.

• Storage containers

  Do not store clams and cockles in an airtight container or plastic bags. These shellfish need to breathe to stay alive. Instead, place them in a breathable container like a mesh bag, in a bowl, or on a tray lined with damp cloths. The container should be covered loosely with a wet cloth to prevent them from drying out. This keeps the shellfish moist while allowing air circulation.

• moisture preservation

  Before storing clams and cockles, ensure they are dry or minimally wet to prevent spoilage. The container should be damp but not excessively wet, as too much water can cause the shellfish to drown. Keep the container in a cold spot within the refrigerator, preferably on the top shelf, where the temperature is most consistent. Do not store them in the crisper drawer, as it can be too humid.

• Storage duration

  Fresh clams and cockles can typically be stored for 1 to 2 days in the refrigerator. They should be cooked or consumed within this time frame to ensure they are still fresh and safe to eat. Check on the storage periodically to ensure the shellfish are still alive. Discard any that are open and do not close when tapped or that have a strong, off-putting odor.

• Freezing

  If longer storage is needed, clams and cockles can be frozen. It is important to freeze them while already cooked. Fresh clams can be stored in their shells for up to 3 months in the freezer. Frozen cockles can last up to 6 months. Freezing stops their activity but can change the texture of the shellfish, making them tougher when thawed.

• Canning or pickling

  Canning or pickling is a way to preserve clams and cockles for several months or years. Ensure the canning process follows proper food safety guidelines to prevent spoilage or bacterial contamination. Always use fresh, fully-cleaned, and properly refrigerated seafood before canning or pickling.

• Monitoring freshness

  To check if clams and cockles are still alive, look for those that are closed. The ones that are open should close when exposed to air or when touched. Any that remain open should be discarded. They should also not have a strong, foul odor. A fresh, briny, ocean-like scent is a good indicator of quality.

Q & A

Can clams and cockles be stored together in the same container?

Yes, clams and cockles can be stored together in the same breathable container. This is especially ideal if they are both being prepared for a seafood dish together. Keep them in a cool, moist environment like the refrigerator, ensuring proper air circulation among them.

What’s the difference between clams and cockles to a buyer?

Clams generally have a wide range of shapes and sizes while cockles have a heart or oval shape. Clams produce pearls sometimes but cockles do not produce pearls at all. Cockles are also typically smaller and more tender than clams. They have a slightly sweeter and milder flavor than clams cockles that are a little more robust and earthy.

How long do clams and cockles stay fresh in the fridge?

When properly stored in a breathable container and maintaining the right humidity, clams and cockles can stay fresh in the fridge for 1 to 2 days. It’s ideal to consume them within this time frame for the best flavor and texture.

Do clams and cockles need to be soaking in water to stay alive in the fridge?

They do not need to be fully submerged in water or soaked to stay alive. Do not store them in a bowl of water because while they need moisture to survive, they cannot breathe properly in a water-filled bowl. The water will also cause them to drown within a short time. They should be stored in a damp, breathable environment that allows them to stay moist.

What to consider when buying clams and cockles online?

Buyers should consider the freshness and quality of the clams and cockles when buying them online. They should also consider the reputable seller’s shipping methods to ensure they maintain the right temperature for the shellfish during transport. Buyers should read reviews and check the seller’s return policies in case the product does not meet the desired standard.