growth.
What Happens When Mayonnaise Is Stored Improperly?
An opened jar left warm repeatedly may lose quality faster.
Possible changes include:
Separation
Rancid or sour odor
Yellowing or darkening
Watery liquid on the surface
Unusual thickness or lumpiness
Mold growth
Heat also speeds the oxidation of the oils, which can produce stale or rancid flavors.
Signs That Mayonnaise Has Gone Bad
Discard mayonnaise when you notice any of the following:
An unusual smell
Fresh mayonnaise should smell mildly tangy. A rancid, fermented, or strongly sour odor is a warning
