Mayonnaise Spoilage Myths - Mayonnaise Safety http://homecooking.about.com/od/howtocookwithcondiments/a/mayospoilage.htm
No.
7 years
about 2 to 3 days
depens on temp of fridge
about..... one and a half hour
about..... one and a half hour
Mayonnaise is safe to eat if cooked or baked on foods. Mayonnaise can be used a a cake to give it a rich flavor.
It depends on the type of quiche. If it contains any form of dairy it can be kept unrefrigerated for up to two days, however you should keep it covered.
no
Liverwurst should be okay 4 days if kept refrigerated.
A turkey sandwich with mayonnaise should be eaten within three hours if not kept cool. Mayonnaise has a tendency to spoil rather quickly at room temperature.
Cooked pinto beans are considered potentially hazardous. They should not be left unrefrigerated for more than 2 hours.