One of the most common questions on cooking sites and forums is whether leftover food should be thrown out. The best advice is to prevent these questions , by learning how to store food properly, estimate quantities, keep track of what you have, and use leftovers creatively.
But what happens if you fear your food has been hanging around for too long? You can look up storage times on various sites, but the recommendations tend to be overly cautious. So much depends on how the food was prepared, and the storage conditions. I suggest using those sites only as a general guideline. If the food looks and smells good, it’s probably safe.