Can I Eat Expired Mayonnaise Unopened?
Safe to eat up to 0 days after expiry
Expert Source
"According to the FDA, unopened mayonnaise can be stored in a cool, dry place away from direct sunlight and should be used by the 'use by' date on the packaging for optimal quality and safety."
✅Fresh Mayonnaise Unopened

⚠️Spoiled Mayonnaise Unopened

Storage Guidelines
Storage Location
Fridge
Ideal Temperature
35-40°F (1.7-4.4°C)
Best Storage Method
Keep refrigerated, tightly sealed
Shelf Life
Average Shelf Life
60 days
Signs of Spoilage
Separation of oil, off smell, unusual color
Additional Information
Alternative Uses
Salad dressings, sandwich spreads
Frequently Asked Questions
What's the difference between expiration and best quality dates for Mayonnaise Unopened?
Mayonnaise typically has a 'best by' date on the packaging, indicating the period of best quality. Over time, mayonnaise can separate, become watery, or develop an off-flavor. While it may still be safe to consume after the expiration date if stored properly, the quality may deteriorate.
How can I tell if Mayonnaise Unopened has gone bad?
To check if unopened mayonnaise has gone bad, look for any signs of mold, discoloration, or separation of oil. Give it a sniff to see if there is any sour or off odor. Lastly, check the texture by ensuring it is smooth and creamy without any lumps.
What are the food safety risks with Mayonnaise Unopened?
Mayonnaise, if left unrefrigerated for an extended period, can pose a risk of Salmonella contamination due to the presence of raw eggs. To prevent foodborne illness, always store mayonnaise in the refrigerator below 40°F (4°C) and discard if it has been left out at room temperature for more than 2 hours.
What are some pro tips for storing Mayonnaise Unopened?
For optimal storage and freshness, always tightly close the mayonnaise container after use to prevent air exposure. Store it in the refrigerator door where the temperature is most constant, rather than in the main compartment where temperature fluctuations occur more frequently. Avoid using a wet spoon to scoop mayonnaise as it can introduce moisture and lead to spoilage.
Any interesting facts about Mayonnaise Unopened?
Mayonnaise originated in Spain and the name is believed to come from the city of Mahón. It gained popularity in France and then spread worldwide. Mayonnaise plays a significant role in culinary cultures across the globe, from being a key ingredient in dishes to a popular condiment in various cuisines.
Expiration Calculator
Sources
For more information on food safety and expiration guidelines, visit our Sources page.
Recipes Available
We have recipes that can help you safely use mayonnaise unopened past its expiration date!
View Recipes →Related Foods
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Reviewed By: Food Safety & Expiration Experts
At Can I Eat Expired, we are committed to providing accurate, science-backed information about food expiration and storage safety. Our content is carefully reviewed based on guidelines from leading food safety organizations, including:
- ✅U.S. Food & Drug Administration (FDA) – Food Safety Guidelines
- ✅United States Department of Agriculture (USDA) – Food Storage & Expiration Dates
- ✅World Health Organization (WHO) – Foodborne Diseases & Safety
- ✅Centers for Disease Control & Prevention (CDC) – Preventing Foodborne Illness
🔍 How We Ensure Accuracy
- We use official food safety sources to guide our recommendations.
- Our team continuously reviews and updates content based on the latest research.
- We encourage users to always check for signs of spoilage and follow proper storage guidelines.
📚 Have Questions?
If you have specific concerns about food expiration or safety, we recommend consulting a registered dietitian, food scientist, or your local health department.
Note: These are general guidelines. Always use your best judgment and when in doubt, throw it out.