Expiration & Storage Tips
When does light mayonnaise expire?
Unopened light mayonnaise can last up to 3-4 months past the 'best by' or 'use by' date printed on the package if stored properly. Once you've opened the jar, it's best to consume the mayonnaise within 2 months if kept in the refrigerator. However, this timeframe can change depending on whether the mayonnaise is made with preservatives or not - those made without may have a shorter shelf life. Homemade light mayonnaise, which is usually made without preservatives, typically lasts around 1 week in the fridge. If frozen (although it's rarely done because it may change the texture), it can last up to 3 months.
How do you tell if light mayonnaise is bad?
If the light mayonnaise looks discolored (mild yellow to brownish), has become excessively thick, or has changed in smell (smells sour or like rotten eggs), it is most likely spoiled and should not be consumed. Mold growth on the surface is another clear indication that the mayonnaise has gone bad. It's always best to trust your senses - if in doubt, throw it out!
Tips for storing light mayonnaise to extend shelf life
• Store unopened light mayonnaise in a cool, dry place away from heat and light.
• Once opened, always refrigerate the mayonnaise and keep it tightly sealed when not in use to prevent the growth of bacteria and to maintain freshness.
• Use clean utensils when scooping out mayonnaise to prevent contamination.
• If you have a large jar of mayonnaise, consider transferring a small amount to a separate container for everyday use. This way, the rest of the mayonnaise isn't exposed to bacteria repeatedly.
• Homemade light mayonnaise should always be kept in the refrigerator and consumed within a week.