Wines stay fresh for a couple of days after opening; about 2 days for white wines and 3 days for reds according to Real Simple. Because whites have more acid, they tend to stay fresh slightly longer.Continue Reading
The easiest way to keep wines fresh without any special equipment is to dip the cork in a bit of wine, and then push it back into the bottle. However, if a significant portion of the wine is gone, a smaller bottle will keep more air out of the wine, which will help it stay fresher. For longer periods of time, up to 10 days, a vacuum wine pump will remove air to keep the wine from oxidizing as quickly. Keeping wine for too long will change the flavor significantly.Learn more about Food Spoilage
Raisins may expire 9 months after opening. Once opened, they should be kept in a refrigerator in a sealed container for maximum freshness.Full Answer >
Mayonnaise does not have as long of a shelf-life as many people think, and should not be left out unrefrigerated for more than a couple of hours. Leftovers that have been refrigerated immediately after preparation can be eaten safely for 2 to 3 days.Full Answer >
Depending on whether pepperoni is stored in the refrigerator or the freezer, it may last from a couple of weeks up to a few months. Pepperoni is mostly resistant to bacteria because it contains nitrites that stop it from growing, but care should still be taken to store pepperoni safely.Full Answer >
Cooked bacon lasts up to 5 days in the refrigerator and up to 6 weeks in the freezer. Although these guidelines are generally acceptable, check the bacon for strange odors or coloring before eating it.