You can freeze nearly all types of baked goods. In order to preserve the freshness, make sure that each individual good is wrapped in plastic wrap and placed in an airtight bag or container to provide an airtight seal. When exposed to the air, baked goods can dry out and become hard, making them much less appealing. Precut bread can be toasted straight from the freezer, although most other baked goods should be thawed before heating. Brownies and dessert bars with a fudgy texture may become slightly moister after being frozen and thawed. You can also freeze the dough of most baked goods. Cookie dough should be thawed at room temperature or in the refrigerator for two to four hours before baking. Frozen baked goods and frozen dough should be used within three months.