Room temperature means around 70°F/21°C. Times will vary depending on the temperature of the room or the refrigerator or freezer. Store unfrosted butter or oil cakes for 1 to 2 days at room temperature, 3 to 5 days refrigerated, or 3 months frozen. Butter cakes should be brought to room temperature before serving. Once a cake has been cut, place a piece of plastic wrap against each side of the open cuts to keep them from drying. Cakes stay freshest if also covered with a cake dome. Store unfrosted cupcakes for 1 day at room temperature, 3 days refrigerated, or 2 months frozen. Store butter or sponge cakes that have been brushed with syrup for 3 days at room temperature, 5 days to 1 week refrigerated, or 3 months frozen. Cheesecakes will keep, refrigerated, for 5 days to 1 week.