With the Christmas season approaching, eggnog has slowly made its resurgence on grocery store shelves. However, a delicious drink made of eggs, milk, cream, sugar, and spices may not last as long as you think. Whether it's infused with Martha Stewart's favorite liquors or simply store-bought, eggnog's expiration date -- and the signs that it's time to dump it in the trash -- are always good to watch for before you end up with a consistency reminiscent of that coffee creamer turned to slime fiasco.

You remember as a kid when you would stick your finger into brownie batter and your mom would tell you not to do that too much or you'd get a stomach ache? Well, there's a good chance it was because of the raw egg used. That's part of the reason you don't want to consume eggnog after its expiration date. The egg can lead to salmonella or food-borne illnesses, especially with homemade recipes that use raw eggs. This isn't as common for store-bought eggnogs because they use pasteurized eggs, which ensures you don't need to cook it before it's safe to consume.