I always use the crusting buttercream icing and royal icing that are in the backs of the wilton yearbooks.
I can't really seem to find where it states an expiration.
I thought I'd heard that bc can stay in the fridge for 2 weeks as long as it's kept air tight, but I've heard other dates too.
What, I'm really curious about is how long can royal icing be stored....and does it need to be refrigerated???
Thanks for all of your help, Melissa!!
There is nothing in the icing that will go bad so it doesn't need refridgerated as long as you don't use milk. I still have some icing that I had at Christmas time sitting in the cupboard(waiting to use it to try some new ideas). If sealed in a container it will last for a very long time, it just needs to be remixed again.
royal icing will keep about a month or so. what i have experienced is that when you use old royal to make flowers they dont tend to dry as hard, or crisp as fresh royal. but it still works the same. oh and it will go moldy in the wet state at about 6wks, seen it.
So, as long as royal icing is kept sealed it will stay good for a long time?!?! Wow!! I'm so glad to hear that!!
I've never used royal icing for much more than roses and I always use it up making roses, so....thanks for that info.!!
As far as I know royal icing needs to be kept in the fridge, it's buttercream made with shortening and icing sugar that can be kept out. Still i freeze my buttercream once im done and then defrost it and rebeat it. The package for the shortening i buy states that it needs to be kept at 22 degrees celcius, i just dont know what temperatures my cupboard is at any point in time, the fridge seems safer. 
Nati
I always refrigerate my bc...for some reason it's so much easier to work with when icing a cake...there's barely any air bubbles at all.
Since I've never had any icing go bad on me (because I've always thrown it away within 2 weeks) what does bc & royal icing look like and/or smell like when it has gone bad?
sweetcakes says royal will mold.......what about bc?
thanks everyone, this site is made up of some of the most helpful people!!!
Royal icing will ruin if you refrigerate it. (The Wilton recipe) Keep in a cool, dry place, tightly stored, and after 2 weeks, it will get stiffer, but can still be used.
Angie
Royal icing will ruin if you refrigerate it. (The Wilton recipe) Keep in a cool, dry place, tightly stored, and after 2 weeks, it will get stiffer, but can still be used.
Angie
Thank you, do you know why it ruin in the refrigerator?
I use the Wilton recipes too and haven't had any storing problems so far. I keep my BC in a plastic sealed container with a sheet of plastic wrap under the lid in the frig ~ for weeks. I store my RI the same way except in the pantry where it's dark and cool. When I'm ready to use them, I just stir 'em up!
Any moisture will ruin royal icing. The condensation from the fridge will cause moisture. I also seal it with clear wrap first, then put the lid on my gladware. It really stays fresh for a very long time.
Good luck!!!
Angie
Wilton says that their Class Buttercream Recipe can sit out on the counter for a few weeks. I have kept mine in the fridge for a few months. Just do the smell/taste test before using it. You will need to mix it a little after it has been sitting.
With the Royal, if you are just talking about the icing before it is used, then agian Wilton says it can sit for 2 weeks on the counter. I have not put it in the fridge but have read where others have said it works with good results. It will seperate as it sits, but just rebeat it before using.
If you are talking about a dried royal icing such as flowers or used to make a color flow piece, then you want to keep it out of the fridge as moisture will ruin the piece. If the cake needs to be put in the fridge then the piece needs to be added before serving.
Wilton says that their Class Buttercream Recipe can sit out on the counter for a few weeks. I have kept mine in the fridge for a few months. Just do the smell/taste test before using it. You will need to mix it a little after it has been sitting.
With the Royal, if you are just talking about the icing before it is used, then agian Wilton says it can sit for 2 weeks on the counter. I have not put it in the fridge but have read where others have said it works with good results. It will seperate as it sits, but just rebeat it before using.
If you are talking about a dried royal icing such as flowers or used to make a color flow piece, then you want to keep it out of the fridge as moisture will ruin the piece. If the cake needs to be put in the fridge then the piece needs to be added before serving.
Thank you!! Thank you!! Thank you!!
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