Unless you plan to eat that entire batch of brownies out of the oven, you have to know how to properly store them. So should you store brownies in the refrigerator?
Fully-cooked brownies will last a while, a week or more. Properly stored and vacuum sealed, they will last much longer and there is no reason to store them in the refrigerator. In fact, it will accelerate the speed at which they become stale. The starches will begin to crystallize at low temperatures. Additionally, the refrigerator is a very low-humidity environment and will act as a dessicant, which means it will pull moisture out of the brownies over time.
Unless you want dry crumbs, keep your brownies vacuum sealed at room temperature and they will stay moist and delicious.
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