Now, let’s get real about what happens when you do refrigerate them. The fridge is a drying machine. Its cold, circulating air sucks the moisture right out of baked goods. A refrigerated corn muffin goes from "pillowy" to "brick-like" faster than you can say "butter."
Easy Basic Corn Muffins Recipe
I’ve done the experiment myself. I put half a batch in the fridge and left half on the counter. The counter muffins were still soft and crumbly the next day. The fridge muffins? They crumbled into sad, dry dust when I tried to slice them open. It was a tragedy in a paper liner.
So, if you must refrigerate them (because of cheese or humidity), there’s a little trick. Wrap each muffin individually in plastic wrap before putting them in the fridge. That thin layer of plastic acts like a raincoat, locking the moisture in. Then, reheat them in a 300°F oven for five minutes, not the microwave. The oven revives that crispy outer edge.
