Choose between room temp, refrigerated, or frozen storage

Properly storing cornbread can be a bit of a choose-your-own-adventure, depending on how soon you plan to enjoy the leftovers. If you're just looking to keep it fresh until tomorrow's dinner, your best option is to let the cornbread cool completely, then wrap it in plastic wrap, aluminum foil, or a tightly sealed plastic bag—making sure to remove as much air as possible. This method will keep the bread fresh on the countertop for two to three days.
If you want to preserve it for longer than a few days, the best strategy is to refrigerate the cornbread. Use the same basic storage techniques as you would for room temperature—keeping your leftover slices or whole loaf tightly wrapped in plastic or foil, then placing it in the fridge. This will keep it fresh for about five days, as long as it remains securely wrapped.
For an even longer shelf life, consider freezing it. Wrap the cornbread (either pre-sliced or whole) tightly and store it in a freezer-safe container, such as a resealable plastic bag or a food storage container. With this extra layer of protection against freezer burn, it can last for about three months in the freezer. When it’s time for chili night again, simply allow the frozen loaf to thaw in the fridge or on the countertop to restore it to its former deliciousness.
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