Instant oatmeal has a long shelf life, but does eventually expire. Unopened or opened instant oatmeal can be stored in the pantry for 1 to 2 years past the printed date.Know More
Flavored instant oatmeal has a shelf life of 6 to 9 months after the printed date. To maximize shelf life, oatmeal should be stored in airtight containers once opened.
Steel cut oatmeal can be safely stored for 2 to 3 years at room temperature. Oatmeal should be kept in a cool and dry location.
If oatmeal changes drastically in color, develops a foul odor or odd texture, it should be discarded. These are indications that it may be spoiled.Learn more about Food Spoilage
Margarine can expire and usually has a date on the label that indicates the last day for its use. Margarine can be used for about two weeks beyond that date. To keep margarine fresh, it should be placed in a refrigerator after every use.Full Answer >
Popcorn kernels do not expire in the sense that old popcorn can make you sick, but popcorn can dry out which causes the popcorn to no longer pop. Microwave popcorn sold in stores has a best-by-date on the box.Full Answer >
While powdered creatine is stable and has a long shelf life if kept in a sealed container, experts suggest that it should be thrown away after two years. Liquid creatine begins to go bad as soon as it is opened, however, and unused portions should not be saved after opening.Full Answer >
Pure vanilla extract has an indefinite shelf life, while imitation vanilla extract can be stored for two to four years. Because these items are labeled with a "best by" date and not a "use by" date, any issue with shelf life of these products deals with quality and not safety.Full Answer >