Do you need to refrigerate a cake frosted with duncan hines canned frosting?

Here's why:

* Preservation: Refrigeration helps slow down the growth of bacteria and mold, extending the shelf life of the frosted cake.

* Stability: The frosting, especially if it contains dairy, can soften and become runny at room temperature. Refrigeration keeps it firm and prevents it from melting or becoming oily.

General Guidelines:

* Refrigerate frosted cakes for up to 4 days.

* Bring the cake to room temperature for about 30 minutes before serving to allow the flavors to fully develop.

Note: If the frosting is made with ingredients like butter, cream cheese, or eggs, it's even more crucial to refrigerate the cake.