Do you have to refridgerate frosting?

It depends on the type of frosting. Some frostings, such as buttercream frosting or cream cheese frosting, contain perishable ingredients and must be refrigerated. Others, such as royal icing or ganache, can be stored at room temperature.

Here is a general guide to whether you need to refrigerate frosting:

* Creamy frostings made with butter, cream, or milk, such as buttercream or cream cheese frosting, must be refrigerated.

* Custard-based frostings, such as diplomat cream or Bavarian cream, must also be refrigerated.

* Chocolate ganache can be stored at room temperature for up to 2 weeks, or in the refrigerator for up to 1 month.

* Buttercream frosting, made with butter and powdered sugar, can be stored at room temperature for up to 3 days, or in the refrigerator for up to 2 weeks.

* Royal icing, made with egg whites and powdered sugar, can be stored at room temperature for up to 1 week, or in an airtight container in the refrigerator for up to 2 months.

When in doubt, it is always best to refrigerate frosting. This will help to prevent spoilage and ensure that your cake or dessert remains fresh.