Considering this, does marshmallow cream go bad?
Storage time shown is for best quality only — after that, the creme's texture, color or flavor may change, but in most cases, it will still be safe to consume if it has been stored properly. If creme develops an off odor, flavor or appearance, it should be discarded for quality purposes.
Additionally, how long does marshmallow cream last once opened? Once opened, marshmallow fluff can last between 2-4 months. You can store the marshmallow fluff in the refrigerator or freeze it to extend its shelf life, and to keep its best quality for a longer period.
Just so, can marshmallow fluff be left out?
Fluff can be stored at room temperature. If you don't plan on using your Fluff for a while, refrigeration will extend the shelf life significantly.
Does marshmallow fudge need to be refrigerated?
Fudge does not need to be refrigerated, although you can keep it cool to extend shelf life. At room temperature, fudge will keep for 1-2 weeks. In the refrigerator, it will keep 3-4 weeks. To really extend it's life, you can also freeze fudge.