Vegan Mayo Expiration: A Comprehensive Guide

How long does vegan mayo last

If you’re a vegan, chances are you’ve explored the world of delicious egg-free alternatives like vegan mayonnaise. Whether you’re making sandwiches, salads, or dipping sauces, vegan mayo has become a staple in many plant-based kitchens. You might be wondering, “How long does vegan mayo last, and how can I tell if it’s still good to use?” We’re here to provide you with essential tips and insights about the shelf life of vegan mayo, so you can enjoy the flavor without compromising on freshness.

When it comes to store-bought vegan mayo, it can last up to six months if stored correctly in an airtight container in the fridge. However, if you’re a fan of homemade vegan mayonnaise, the shelf life shortens to around one to two weeks. This can vary based on the ingredients and lack of preservatives in your homemade version. As you read further into the article, you’ll find more helpful information on telling whether your vegan mayo has gone bad and how to store it properly to ensure maximum freshness.

Now that you know what to expect on this topic, let’s dive deeper into what factors influence the lifespan of vegan mayo, and how you can make educated decisions when it comes to enjoying this delicious plant-based condiment. Rest assured, by the end of this article, you’ll feel well-equipped to keep your vegan mayo fresh and flavorful for as long as possible.

Understanding Vegan Mayo

Vegan Mayonnaise Ingredients

Just like traditional mayonnaise, vegan mayo is a creamy and delicious condiment. But what makes vegan mayo different? The main difference lies in the ingredients. While both types of mayonnaise generally contain oil, vinegar or lemon juice, and a thickening agent, the vegan version swaps out eggs for plant-based substitutes.

Vegan mayo can be made using various egg substitutes, such as:

  • Aquafaba: the liquid from a can of chickpeas
  • Silken tofu
  • Nut or seed butter

Traditional Mayonnaise vs. Vegan Mayo

While both traditional and vegan mayonnaise share some common ingredients, here are some key differences:

IngredientTraditional MayoVegan Mayo
Vinegar/lemon juiceYesYes
Egg substituteNoYes

The most significant variance is the absence of eggs in vegan mayo. Traditional mayonnaise relies on eggs as an emulsifying agent, helping to mix oil and water-based ingredients. On the other hand, vegan mayonnaise utilizes plant-based substitutes like aquafaba or tofu to achieve the same smooth and cohesive mixture.

There are also some secondary differences when it comes to taste and nutritional profiles. For instance, some vegan mayo versions include mustard or other additional flavorings, leading to different taste experiences.

When it comes to nutrition, vegan mayo can have a slightly different profile in terms of calories, fat content, and other nutrients. However, this may largely depend on the specific brand and choice of plant-based substitute.

Now that you have an idea of the differences between traditional and vegan mayo, you can confidently select the best option to fit your dietary needs and preferences. By understanding the ingredients and variations, you’ll be able to make informed decisions about which mayo to choose for your next meal.

How long does vegan mayo last once opened

How Long Does Vegan Mayo Last?

Store-Bought Vegan Mayo

When it comes to store-bought vegan mayo, the shelf life can vary depending on the brand and whether it’s opened or unopened. Unopened vegan mayo can typically last for several months, while opened vegan mayo will usually remain in good quality for up to two to three months, as long as it’s kept in the refrigerator.

Remember that it’s essential to store your opened vegan mayo in the fridge to maintain its quality. Manufacturers, such as Vegenaise, recommend keeping their vegan mayo refrigerated at 36-41°F for optimal storage conditions.

Homemade Vegan Mayo

When it comes to homemade vegan mayo, the shelf life tends to be shorter than store-bought options due to the lack of preservatives. As a general rule, homemade vegan mayo can last up to 1 week in the fridge when stored in an airtight container. Keep an eye on any changes in texture, color, or smell to ensure your vegan mayo remains fresh.

Here’s a quick recap of the shelf life of store-bought and homemade vegan mayo:

Store-bought6-12 months2-3 months
Homemade1-2 weeks

Expiration Dates vs. Use By Dates

When trying to determine the shelf life of vegan mayo, it’s essential to understand the difference between expiration dates and use-by dates:

  • Expiration Date: Indicates when the product is no longer considered safe for consumption. It’s best to discard the product once it reaches its expiration date.
  • Use By Date: Suggests when the product starts to lose its quality, but it might still be safe to use beyond that date. Use your judgment and check for freshness by inspecting the vegan mayo before consumption.

To better understand the shelf life of your vegan mayo, take note of these dates on the packaging, if available. However, keep in mind that these dates are just guidelines, and your vegan mayonnaise might last shorter or longer depending on various factors such as storage conditions and ingredients.

Remember to always use your senses to check for any changes in your vegan mayo’s appearance, texture, or smell. If you notice any mold or off-putting aromas, it’s best to discard the mayo and make a fresh batch or purchase a new one.

Storage Tips for Vegan Mayo

Room Temperature

Unopened store-bought vegan mayo can be stored at room temperature, ideally in a cool, dark place such as a pantry or cupboard. This can help protect it from exposure to light, heat, and moisture, which can all cause spoilage or degradation of its quality. Once you’ve opened the container, though, it’s time to move it to the fridge.


Opened vegan mayo should be stored in the refrigerator to ensure the best possible freshness. Keep it at a temperature between 35°F and 40°F (1.7°C and 4.4°C) and make sure the container is tightly sealed to keep out any unwanted mold or bacteria. When properly stored, opened vegan mayo can last for 2 to 3 months in the fridge. But remember, homemade vegan mayo won’t last as long – it’s typically good for up to two weeks.


You might wonder if you can freeze vegan mayo to prolong its shelf life. Unfortunately, freezing is not the best option for mayo, as the emulsion may separate, resulting in an unappealing texture once it’s thawed. If you find that you have too much mayo on hand, consider making smaller batches or sharing it with friends to avoid waste.

Airtight Containers

Whether you’ve made your own vegan mayo or have transferred store-bought mayo into another container, using an airtight container is crucial in preserving its quality. Airtight containers help prevent the entry of air, moisture, and bacteria, all of which can contribute to spoilage. Be sure to clean the container and dry it thoroughly before adding the mayo to avoid any unwanted moisture or contaminants.

By following these storage tips, you can keep your vegan mayo in the best possible condition and enjoy its creamy goodness for as long as possible.

How long does vegan mayo last in the fridge

How Do You Know If Vegan Mayo is Bad?


One way to identify if your vegan mayo has gone bad is by examining its color. Fresh vegan mayo typically has a smooth, creamy white appearance. If you notice any unusual colors such as yellow, brown, or gray, it might be a sign that the product has spoiled.


Another sign to look for is separation. While some minimal separation can occur naturally in vegan mayo, a significant amount of separation or curdling can indicate that it’s time to throw it away. Give the container a gentle shake to mix the contents, and if the mayo still appears to have significant separation, it may be best to avoid consuming it.

Mold and Bacteria

Mold and bacteria growth can also indicate spoilage in vegan mayo. Always check for any unusual spots or fuzz on the surface, as well as any off-putting smells.

To prevent cross-contamination and extend the life of your vegan mayonnaise:

  • Always use a clean utensil when scooping mayo from the jar
  • Keep the container tightly sealed and stored in a cool, dry location, such as the refrigerator
  • Avoid letting the mayo sit out for long periods

Remember, an airtight container can help maintain the quality of the vegan mayo, keeping it fresh for a longer period. It’s essential to ensure proper storage, such as keeping the jar at a temperature between 35°F and 40°F (1.7°C and 4.4°C). Furthermore, acidity from ingredients like lemon or vinegar in the vegan mayo can help preserve it, but it’s still crucial to practice good hygiene to prevent spoilage.

By paying attention to these signs of spoilage, you can enjoy your vegan mayonnaise in a safe and delicious manner!


The shelf life of vegan mayo varies depending on whether it’s store-bought, unopened, opened, or homemade.

When it comes to store-bought vegan mayo, you can expect unopened containers to last anywhere from 6 to 12 months. If already opened, they usually last for 2 to 3 months when properly stored in the refrigerator. Keep an eye out for the ‘best before’ or ‘use by’ date on the packaging to get a better idea of the product’s shelf life.

Now, if you’re into making homemade vegan mayo, it’s important to remember that it generally has a shorter life span due to the lack of preservatives. This means your homemade mayo can last up to 7 to 10 days when refrigerated in an airtight container. Always trust your senses (sight and smell) to determine if it’s still good to consume.

Remember that improper storage can cause vegan mayo to spoil faster. Therefore, make sure to store it away from light and heat sources.

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Gregory Knox
Gregory Knox

A certified nutritionist, father, and animal lover combines 13 years of veganism with his expertise in food and nutrition, offering readers a wealth of knowledge on plant-based diets and cooking.