left at room temperature for extended periods.
Mayonnaise
Homemade mayonnaise being whisked in a mixing bowl
Homemade mayonnaise being whisked in a mixing bowl
Food Safety Guidelines for Mayonnaise Storage
According to the United States Department of Agriculture (USDA), mayonnaise should be refrigerated after opening to maintain its safety and quality. The USDA recommends that perishable foods, including mayonnaise, should not be left out at room temperature for more than two hours.
This guideline helps prevent the growth of harmful bacteria that can cause foodborne illnesses.
The Role of Temperature
