First, cool your quiche completely before you even think about the fridge. If you shove a hot quiche in there, it creates condensation, and condensation is the enemy of a good crust. It turns that flaky bottom into a sad, gummy mess. Let it sit on the counter for about 30 minutes, then wrap it tightly. Plastic wrap is fine, but aluminum foil or an airtight container works even better. Air is the villain here.
How Long Does Cooked Quiche Last In Refrigerator at Lucinda Pell blog
One more tip: avoid showing the fridge door. Every time you open it to grab the ketchup, the temperature fluctuates. Store your quiche on a middle shelf, not the door. The door is the warmest part of the fridge, and your quiche deserves a stable, chilly home. Treat it like a diva—because honestly, it has earned that respect.
Can You Freeze Quiche? (Yes, and It’s a Game-Changer)
So you made a massive quiche for a party, and now you have half a pie staring at you. Freeze it! Quiche freezes beautifully for up to two months. The trick is to freeze it before you bake it, or freeze it fully baked and then thaw in the fridge overnight. Just wrap it in a layer of plastic, then a layer of foil. When you’re ready, reheat it in a 350°F oven (not the microwave—the microwave turns the crust into a rubbery disc).
I have a buddy, Dave, who freezes individual slices in zip-top bags. He calls them “emergency quiche.” When he has a late work night, he pops one in the toaster oven and feels like a king. It’s the adult version of a frozen pizza, but with more class.