See which way you should store this popular condiment to make sure it's safe and still tastes great for those sandwiches, hot dogs, and burgers.

Add Yahoo as a preferred source to see more of our stories on Google. To refrigerate or not to refrigerate—that is the question. Simply Recipes / Getty Images I keep mustard in the fridge at home. At ...

• Store unopened mustard in a cool, dark place away from heat and light. • Once opened, mustard should be refrigerated to maintain its flavor and freshness. • If you prefer room-temperature mustard, ...