Storage Apple pop tarts can be stored at room temperature for up to 2 days in a cool dry place, wrapped well. Reheat UN iced pop tarts in the toaster, but for the pre ICED pop tarts you should use a flat toaster oven or a microwave. Pop tarts BAKED & UN BAKED can be frozen for up to 2 months wrapped well, it is recommended not to freeze with the icing since it will melt when it is thawed