This site seeks to identify those social interventions shown in rigorous studies to produce sizable, sustained benefits to participants and/or society. We do this by systematically monitoring the literature of all rigorous program evaluations â published and unpublished â across all areas of social policy. The purpose is to enable policy officials to readily distinguish the few interventions that are truly backed by rigorous evidence from the many that claim to be.
Report Abuse. Now egg-salad itself in a sealed container can last up to ten days in fridge, however once a sandwich is made after several hours the bread begins to get kinda soggy the sandwich is still very edible however not desireable. hbettag Â· 9 years ago. Thumbs up.
Salad dressing does indeed go bad, though different types of salad dressings have different shelf lives. If unopened, creamy dressings (like Ranch or Thousand Island) are safe to consume for about two months past the printed expiration date. Unopened vinegar and oil dressings, like balsamic vinaigrette, will stay fresh for up to four months past the written expiration date. For the most part, this will give the unopened bottle of dressing a shelf life of one or two years, if kept in a cool dark place, like your pantry or cellar. Once a bottle of salad dressing is opened, the shelf life diminishes rapidly. Creamy dressings can be kept for up to four months in the refrigerator, and oil and vinegar based dressings should be consumed within six months.