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How Long Is Tuna and Mayo Good for in Fridge?

Last Updated on February 27, 2024 by Lauren Beck

Similar to others, I have my preferred recipes for when time is limited or cooking becomes a burden, and one of my go-to dishes is tuna and mayo. However, it’s important to keep in mind its shelf life in the refrigerator.

Typically, tuna and mayo can last 3-5 days when refrigerated, beyond which freezing or disposal is advisable.

When uncertain about its freshness, it’s wiser to err on the side of caution and opt for safe disposal. Prioritizing food safety is always the better choice!

How Long Does Tuna Salad Last?

Tuna salad is a popular dish made with canned tuna, mayonnaise, and chopped vegetables. It’s a great option for a quick and easy lunch or dinner.

Tuna salad will last for 3-4 days in the fridge. After that, it will start to spoil and should be thrown out.

So if you’re looking for a quick and easy meal that will last a few days in the fridge, tuna salad is a great option.

Just be sure to eat it within a few days of making it. Otherwise, it will go bad, and you’ll have to throw it out.

Does Tuna Salad Go Bad?

Yes, tuna salad made with mayonnaise can go bad. The United States Department of Agriculture (USDA) recommends throwing out perishable foods, including tuna salad, in the fridge after three to four days.

Tuna salad is a popular dish made with canned tuna, mayonnaise, and chopped vegetables or fruits. It’s a quick and easy meal that can be enjoyed as a sandwich filling or dip.

While tuna salad is safe to eat for three to four days, it’s best to eat it sooner rather than later.

After four days, the tuna and mayonnaise start to break down, and the salad will no longer be at its best.

How Long Is a Tuna Sandwich Good For?

Tuna sandwiches with pickled cucumbers and onions on parchment paper

A tuna sandwich is best eaten within 3-4 days of being made. After that, the tuna begins to lose its flavor, and the mayonnaise can start to spoil.

If you’re not planning on eating your sandwich right away, it’s best to keep it in the fridge until you’re ready.

How to Tell if Tuna Salad is Bad? 

Here are some signs that your tuna salad has gone bad:

  • The tuna looks discolored or off-color
  • There is an unpleasant odor coming from the tuna
  • The texture of the tuna seems different than usual
  • The mayonnaise in the tuna salad has separated or become watery

If you notice any of these signs, it’s best to throw out the tuna salad and make a new batch.

Can You Freeze Tuna Salad?

Yes, you can freeze tuna salad. To do so, place the tuna salad in a freezer-safe container and store it in the freezer for up to 2 months. 

When you’re ready to eat it, thaw the tuna salad in the fridge overnight and enjoy.

How to Store Tuna Salad?

Here are the steps for how to store tuna salad:

  1. Place the tuna salad in a sealed container or wrap it tightly in plastic wrap.
  2. Store the tuna salad in the fridge for 3-5 days.
  3. Enjoy your delicious tuna salad!

Will Expired Tuna Make You Sick?

If the tuna is past its expiration date, it’s best to err on the side of caution and throw it out. 

Eating expired tuna could lead to food poisoning, which can cause symptoms like nausea, vomiting, diarrhea, and abdominal pain. 

What Happens if You Eat Bad Tuna?

If you eat bad tuna, you could experience symptoms like nausea, vomiting, diarrhea, and abdominal pain. 

These symptoms can range from mild to severe, and in some cases, they can even be life-threatening. 

If you experience any of these symptoms after eating bad tuna, it’s important to seek medical attention immediately.

Health Benefits of Tuna Salad

Tuna salad is a healthy and nutritious meal option [1]. Tuna is a good source of protein and omega-3 fatty acids, both of which are important for maintaining a healthy diet. 

Mayonnaise is also a healthy addition to tuna salad, as it contains monounsaturated fats that can help lower cholesterol levels. 

Tuna salad is also a low-calorie option, making it a great choice for those watching their weight. 

When made with healthy ingredients, tuna salad can be a nutritious and satisfying meal.

Tuna Salad Recipe


  • 1 can (6 oz) tuna, drained and flaked
  • 1/4 cup mayonnaise
  • 1 celery stalk, diced
  • 1 green onion, diced
  • 1/2 lemon, juiced
  • Salt and pepper to taste


  1. In a medium bowl, mix together tuna, mayonnaise, celery, green onion, and lemon juice.
  2. Season with salt and pepper to taste.
  3. Serve chilled. 
  4. Enjoy!

Can I Eat Tuna Mayo After 2 Days?

You can eat tuna mayo within two days if properly refrigerated. Check for signs of spoilage and use your senses to determine freshness.

When in doubt, avoid consuming it to ensure food safety. Store perishables in airtight containers and practice proper hygiene when handling food.


Having personally relished tuna salad as a nourishing and delightful meal, I can attest to its universal appeal. This wholesome dish boasts a well-balanced mix of protein, healthy fats, and low-calorie content, making it a gratifying and nutritious choice for all.

When storing tuna salad, prioritize freshness by sealing it in a container and refrigerating it for 3-5 days. This simple precaution ensures the flavors remain intact, allowing you to indulge in the goodness of tuna salad whenever you please.

Embrace the goodness of this delectable option and savor the benefits it brings to your palate and overall well-being.


Lauren Beck
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