Regardless of whether you are using real butter or shortening, both should be kept inside the fridge. While butter is more perishable than shortening, either can go off relatively quickly when kept at room temperature.
If you have ever had to transport frosted cupcakes or a cake on a hot summer’s day in a car with no air conditioning, you know exactly what we are talking about!
As you can see, the answer to, “Do you need to refrigerate buttercream frosting?” is very simple. To help extend the shelf life considerably, rather store it inside of the fridge!Let us know if there is anything else you would like to learn about!