For storage longer than one week (and up to 4-6 months), store your royal icing in the freezer. I always freeze my leftover icing. Yes, you heard that right! For the longest time I would throw out my leftover icing.
Why Is My Icing So Runny?
This is another thing that happens when you freeze royal icing. When royal icing freezes water in the icing expands(approximately by 9%) and so when the frozen icing thaws it is a bit runnier.
For instance, frozen 15-second consistency royal icing will be more like 10-second consistency when you defrost it. Icing that you used to pipe leaves(see the video) will be more like 20-25 second consistency.
How To Make Icing Thicker
To make thin icing thicker we need to add stiff icing to thin icing. Though I’m not a mind reader I bet you are now questing the whole freezing thing. Why do I have to add stiff royal icing to my frozen icing??
HOW TO FREEZE ICING & FROSTING
FAQ
Can you freeze frosting to use later?
How long can icing last in the freezer?
How do you reuse frozen icing?
Can you freeze icing & frosting?
You can freeze icing and frosting by covering it with plastic and placing it in an airtight, freezer-safe container. Covering it with plastic will eliminate air getting onto the icing, and an airtight container will further protect it. You should use the frozen icing or frosting within four months.
What is a substitute for icing sugar?
You can replace icing sugar with lump sugar, stevia, agave syrup, sweeteners, or honey. Your choice will depend on your tastes, preferences, and if there is any underlying pathology.
Can you freeze leftover icing?
Well, it really is possible to freeze leftover frosting. You can freeze the leftovers, or you can just make buttercream ahead of time and freeze it for later. There are also a ton of options for using leftover icing as well. As an Amazon Associate, I earn from qualifying purchases.
Can you freeze canned icing?
You can freeze canned icing or frosting from the grocery store, but it’s best to remove it from the can and place it in an airtight container rather than freezing it directly in the can. This ensures it won’t burst out of the can while it freezes and keeps it protected.