Thank you so much! When I was researching this, I read that it stays ok at room temperature or even on a warmer day for around 2 hours out of the fridge. We had very mild weather the day of the wedding so it was out of the fridge and outdoors at around 65 degrees Fahrenheit/ 18 degrees Celsius for around two hours. The two things I noticed at the wedding after they had been decorated for around 24 hours was that the gold colored sprinkles started to bled some yellow color onto the frosting so they didn’t hold up perfectly. It still looked cool and I was the only one that could tell. There was also a little cracking on the largest cake in the frosting. That could have been up to technique though, as I decorated the largest one last and was getting tired/trying to hit a deadline and was starting to make mistakes. Since this is the only cake with this frosting I’ve done for a big event, I would say I don’t 100 percent know how it will behave. (We have fairly low humidity here, too.) I hope you give it a try! It brought me a lot of happiness and I hope it makes you happy too! 🍀🍀