How to Cook Frozen Mussels? Info and Tips

Mussels are a great seafood option that can be prepared in just minutes. Learn how to cook frozen mussels and a few other cool tips in this post.

Mussels are a fan favorite and not everyone knows how to cook them. So it’s best to learn it one time and forever be grateful you can eat this delicious food. 

How to Cook Frozen Mussels? Step by Step

How to cook frozen mussels

Here’s how to cook mussels that were frozen so that they taste fresh as ever:

Step 1: Rinse the frozen mussels under cold water for about 10 minutes until the thawing process is complete.

Step 2: Remove any beards or barnacles from the outside of the shells using your fingers or a knife before cooking. This will prevent any sand or grit from getting into the dish while cooking, which would make it very unpleasant to eat later on.

Step 3: Put 1/2 cup (120ml) of olive oil, two cloves of minced garlic and a sprinkle of chilli flakes into a hot skillet. Once you can smell the scent of garlic, throw in your mussels to pan-fry them for about 5 minutes until they open up fully.

Step 4: Add a splash of white wine and two tablespoons (10ml) of lemon juice to help bring out the flavour before sprinkling some fresh chopped parsley.

Step 5: Serve with a side of steamed rice, couscous or even mashed potatoes to soak up the sauce!

Your tasty meal is ready to eat within 15 minutes!


  • 1 pound of fresh mussels,
  • Two tablespoons of olive oil,
  • Three cloves garlic,
  • Two shallots or onions,
  • Four sprigs thyme.
  • ½ cup dry white wine (optional).
  • Salt and pepper to taste.

Do you need to wash frozen mussels?

All you need to do is wash your mussels, defrost them naturally and rinse well.

However, if they are frozen raw, make sure not to cook as it will ruin their taste!

How do you cook frozen mussels without a shell?

One way to do this is to place the mussels in a pot, cover them with water and bring the water to a boil.

When they’re cooked, please take out the pot of boiled mussels and strain out any of the liquid that’s left before serving them.

How do you cook frozen mussels from Costco?

To cook frozen Costco mussels, boil a pot of water. Add the frozen mussels to the boiling water and wait for about 10 minutes.

The cooking time may vary depending on the size of the mussels. Remove from pot and wait for it to cool down before eating.

Why won’t my mussels open?

Frozen mussels take a little while to thaw. Sometimes, they can take up to 24 hours and even longer if the freezer is the only source of coldness in your home.

Because this might be what you’re experiencing already, we recommend that you put the frozen mussels in a bowl of cool water for about 15 minutes or so.

This should get them to open right up and eliminate any bacteria still attached to their shells!

How long do you cook frozen mussels in the microwave?

In a microwavable dish, add mussels and cover with water until they’re submerged—microwave for 5 minutes.

Drain the water out of the dish and put it into a wok or frying pan, then fry with butter or oil for 4-5 minutes until they start to brown.

How long do frozen mussels last?

Keep your spices stored in a cool, dry place where they will remain safe for about 2 to 3 months after opening.

How do you clean frozen mussels before cooking?

After you open the bag, take a look at the mussels and remove any open and don’t close after being tapped. If they’re not frozen solid, then they need to stay frozen until you’re ready to cook them, as they’ll spoil otherwise.

You can then put those back in the freezer for later use. Next, clean the shells with a brush under running water and scrub off any encrusted barnacles or other residues with a cloth or towel.

Finally, pour a boiling bath over them (or as near as possible), turn off the heat, and leave them to soak for about five minutes before using.

What happens if you eat a bad mussel?

Your body is built to reject foreign substances like bacteria and toxins. After eating contaminated clams or mussels, you will experience nausea, vomiting, diarrhoea (a type of stool).

The sensation of numbness in your mouth followed by headaches and dizziness alternating between hot and cold temperature reversals across your body.

What should a cooked mussel look like?

A cooked mussel should typically have a nice, supple wrapper around it.

They are also cooked when they are open, and the flesh is easy to extract from the shell.

The raw mussel will have usually have a more rigid, tighter or sometimes even more sticky looking body.

What can I do with frozen mussel meat?

The best thing about frozen mussels is that they are quick, healthy and affordable!

Usually, you can find them in cans or jars, but there are also frozen ones.

How can you tell if frozen mussels are bad?

Frozen mussels are not good if there is dry spots or discolourations on them.

This means that freezer burn has set in and will make the texture of your meal worse than before!

Can you defrost mussels in the microwave?

Defrosting mussels in the microwave is not recommended because it will result in overcooked and rubbery food.

It would help if you used it in the refrigerator, under cool running water, or in the microwave to defrost them before cooking.

Can you freeze live mussels?

A person can freeze live mussels if they are planning to cook them.

They will need to ensure that not all of the water has evaporated and that the mussels are covered in the liquid.

It is important to note that frozen live mussels might not be as tasty as fresh ones.

Are mussels good for you?

Mussels are fantastic for you because they are an excellent source of protein, iron, zinc, iodine and vitamin B12. They are also low in calories which is perfect if you are watching your weight.

Is it OK to cook open mussels?

Mussels are a type of food rich in iron and protein, making them suitable for you. They’re also high in omega-3 fatty acids, which help with inflammation.

The only downside to mussels is that they may contain some cholesterol. It’s important to consider how many calories you consume when consuming mussels.

Are slightly open mussels OK to eat?

Mussels shrink by about 25% when they cook and can contract even more if they are open slightly.

So, yes, you can eat them. Still, the food safety experts say that it’s best to avoid open or defrosting mussels because harmful bacteria like E Coli and Salmonella grow quickly in the warm wet tissues inside the shellfish.

Will dead mussels open when cooked?

Some say that dead mussels will not open when cooked.

It has been said that the tightening of the rubber piece of the mussel to keep water out can cause it to stay closed even after cooking.

How do you cook frozen mussels on the stove?

Frozen mussels must be boiled for a minimum of 10 minutes. They can be eaten raw, but this is not recommended.

You can add any vegetables you like to the boiling water and the mussels, but make sure they all have at least 10 minutes in the pot together.

The instructions from Cooks Illustrated are as follows: “In a large pot, bring 4 quarts water with one tablespoon salt to a boil.

Add 2 pounds of frozen mussels, cover and cook until the shells open, about 10 minutes.

How do you reheat frozen cooked mussels?

To reheat frozen cooked mussels, place them in a bowl and add enough hot water to cover.

Cover with plastic wrap or lid, then microwave on high power for about 30 seconds to 1 minute depending upon the size of your batch!

That is all there is to it. Just be careful not to overcook, as this can cause explosions when you open up that pot again later down the line.

What happens if mussels freeze?

Mussels freeze pretty well, they will be too rock hard to eat frozen, but if you thaw them out, they will be fine.

How long do mussels live for?

It’s not known how long mussels live. They are primarily filter feeders, so they will mainly take in any food available at the bottom of the body of water that they reside in, which means that they’re not particularly selective.

Mussels are very edible, and pretty much everyone loves eating them, but there’s an important thing to know about getting them cooked – cooking destroys the flavour!

Can you vacuum pack live mussels?

Yes, you can! Some people are nervous about cooking live mussels because they are afraid of having one “jump out” at them.

But the truth is that it’s not very likely for them to do so if they are correctly placed in the bag with some liquid. So yes, vacuum pack your live mussels away!

Should I soak mussels before cooking?

Mussels are filter feeders, and they breathe to get rid of excess sand. Soaking them before cooking can help remove some of this grit, resulting in a more flavorful dish!

Do you need to clean mussels before cooking?

Before you cook them, make sure they’re clean. Rope-grown mussels are usually very pristine, but barnacle-covered ones from the seabed may have grit in their shells and even some strange hairs on occasion!

What happens if you eat a mussel beard?

The beard in the mussel is an integral part of the fertilization in the mussel. If you eat it, they might not be able to reproduce.

Why am I sick after eating mussels?

In some cases, if someone eats frozen mussels, they may come down with a chance of scombroid.

This is because the bacteria that cause food poisoning called scombroid, can infect mussels and other bivalves during freezing.

Can you get food poisoning from mussels?

It is possible to get food poisoning from mussels, but it becomes more likely if you eat raw or undercooked mussels and if you eat them from unsafe sources.

Can mussels be poisonous?

The neurotoxin saxitoxin is the most dangerous and paralyzing toxin found in mussels.

How do you know when a mussel is cooked?

It’s important to remember that you’re not looking for a particular colour or firmness when cooking mussels. You’re looking for the shell to open up.

If you try opening a mussel and it isn’t easy to open, you might want to cook that one a little longer.

How do you open mussels without killing them?

If you want to try cooking mussels, be prepared for this messy affair.

You open them by cutting the strands joining each shell half together and pulling out the beard (a slight bit of fibrous rope-like thing in the split like in your fingernails).

If there’s sand on them, it can be challenging to get off. Wet your stabber with water before continuing to work on it.

How can you tell if mussels are good?

Like most other seafood, you can tell if mussels are good by smelling them. Generally, they should smell like the ocean, which means they are an ideal candidate for cooking.

If you want to be extra sure that your mussels are fresh enough to cook, take them out of the freezer and put them in a pot of cold water.

Let them sit for about 10 minutes. After 10 minutes, toss some salt into the pot and wait another 5 minutes before feeling them to see if they’re alive. If they aren’t happening, throw them away.

How do you defrost live mussels?

First, find a deep pot that is large enough to allow the live mussels to be patted dry. Fill the pot with cold water and set it on the stove.

Turn the heat too high to bring the water to a rapid boil. Dip each mussel in the boiling water for 10 seconds or until it opens.

Remove them from the water and allow them to cool, opening them again as they do so, before patting them dry with a kitchen towel.

How do you cook mussels in the microwave?

Here are some steps to cook mussels in the microwave:

Step 1: Get a bowl and fill it with cold water (or tap water). Put the mussels in and clean their shells.

Step 2: Add the mussels to the microwave and cook for around 5 minutes, depending on your microwave.

Step 3: Take care when opening your microwave as it can be boiling.

Step 4: Serve and enjoy!

Can you cook cooked mussels from frozen?

Yes, you can. You will need to defrost them and bring them to a boil in a pot of cooking liquid before they will be ready for eating.

Mussels cooked from frozen will take the same amount of time as those that were defrosted and then cooked.


Mussels are a delicious and healthy food that can be prepared in many ways.

Cook them up by poaching, steaming or grilling! They’re also an affordable meal for those on a budget.

If you want to find out how to cook frozen mussels, read this article!

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