This is because raw eggs can contain harmful bacteria, such as Salmonella, which can cause food poisoning. Salmonella can multiply quickly at room temperature, so it's important to refrigerate the dressing as soon as possible. Even after refrigeration, the dressing should be used within a week to prevent the growth of harmful bacteria.
To extend the shelf life of Caesar salad dressing, you can make it with pasteurized egg yolks. Pasteurized eggs have been heated to a high enough temperature to kill harmful bacteria, so they are safe to use at room temperature. Caesar salad dressing made with pasteurized egg yolks can be stored at room temperature for up to 24 hours, or in the refrigerator for up to 2 weeks.
Here are some tips for storing Caesar salad dressing safely:
* Store the dressing in a clean, air-tight container. This will help to prevent the dressing from coming into contact with harmful bacteria.
* Refrigerate the dressing at 40 degrees Fahrenheit (4 degrees Celsius) or below. This will help to slow the growth of harmful bacteria.
* Use the dressing within 2 hours if left at room temperature, or within 7 days if refrigerated. This will help to prevent food poisoning.
* If you are not sure whether the dressing is still good, discard it. It's better to be safe than sorry!