1. **Storage**: Place brownies in an airtight container to maintain freshness.
2. **Room Temperature**: Keep at room temperature for up to 3 days.
3. **Refrigeration**: For longer storage, refrigerate in the container for up to a week.
4. **Freezing**: Wrap individual brownies tightly in plastic wrap, then place them in a freezer-safe bag or container. Freeze for up to 3 months.
5. **Thawing**: Thaw frozen brownies in the refrigerator overnight or at room temperature for a few hours. Heat in the microwave for a quick warm-up or in the oven at 300°F (150°C) for a few minutes for a fresh-baked taste.