Yes, you can put frosting on a cake before putting it in the refrigerator, but it's essential to follow a few guidelines to ensure the best results and maintain the quality of the cake and frosting.
Cool the cake: Allow the cake to cool completely before applying the frosting. If the cake is still warm, the frosting may melt or become runny, leading to an uneven and messy appearance.
Crumb coat (optional): If you want a smooth and even frosting layer, consider applying a thin layer of frosting called a "crumb coat" before refrigerating. The crumb coat helps seal in any loose crumbs on the cake's surface, preventing them from mixing into the final layer of frosting. After applying the crumb coat, refrigerate the cake for about 15-30 minutes before applying the final layer of frosting.
Refrigerate the frosted cake: Once the frosting is applied, you can safely refrigerate the cake. Cover it with a cake dome or wrap it in plastic wrap to prevent the cake from drying out or absorbing any odors from the refrigerator.
Freezing the frosted cake: If you plan to freeze the cake for an extended period, it's important to follow proper freezing techniques. Make sure the cake is well-covered with plastic wrap or aluminum foil to prevent freezer burn and absorb any freezer odors. You can also place the frosted cake in an airtight container or a cake box before freezing.
Thawing the frozen cake: When you're ready to enjoy the frozen cake, thaw it in the refrigerator or at room temperature. Avoid unwrapping the cake until it has thawed completely to prevent condensation from forming on the frosting.
While it's generally safe to refrigerate or freeze a frosted cake, keep in mind that the texture and appearance of certain frostings may change slightly after being chilled. Buttercream and cream cheese frostings, for example, can become firmer when refrigerated, while whipped cream-based frostings may lose some of their fluffiness.
Always consider the specific type of frosting you're using and how it may be affected by refrigeration or freezing. If you're using delicate decorations on the cake, freezing might not be recommended as it could affect their appearance when thawed.