I love cupcake cases for this one reason; that they are an airtight container. They keep the crumb moist and the integrity of a frosted cupcake in-tact. Cupcakes should be completely cooled on a cooling rack prior to being loaded into a cupcake case so they do not become soggy. Stored properly, your perfect fluffy chocolate cupcake will remain as fresh as it was the day it was baked for about 5 days.