We tested the lid for our favorite rimmed baking sheet from Nordic Ware. Testers used the lid to cover food left overnight in the refrigerator and for a week in the freezer, comparing it to baking sheets covered with plastic wrap or aluminum foil. We also used the lid to cover pizza dough as it proofed on a baking sheet in the refrigerator. To test the lid’s durability, we weighed it down with heavy items, deliberately stained it, and ran it through the dishwasher 10 times.
We tested the smaller version of our favorite rimmed baking sheet lid from Nordic Ware, evaluating how securely it fit onto our favorite small rimmed baking sheet, also from Nordic Ware, and how easy it was to take off. We used it to cover a sheet of sliced eggplant that we refrigerated for 24 hours along with two sheets of eggplant covered with either plastic wrap or aluminum foil. We also used the lid to protect sliced strawberries and bananas that we stored in the freezer for two days along with two sheets of strawberries and bananas covered with either plastic or foil. We then compared all the food samples, checking for discolored eggplant and freezer-damaged fruit. To test durability, we weighed down the lid with 10 pounds of food items, checking its condition while weighted and afterward. We also slathered it with a mix of foods, washed it by hand 10 times, and ran it through the dishwasher twice, checking it for stains or lingering scents.