I have used Earlene's cream cheese buttercream icing a couple of times now and really love the taste and texture of it. On her website, she says that "this icing will not melt in the out door receptions - that is if you don't leave it in the sun at 105Âº for 6 hours. It reacts to heat just like the regular buttercream." She also says that this icing does not require refrigeration. Does anyone have experience using this icing on a cake that will be outdoors? It will probably be between 80 and 85 degrees with some humidity, but probably not in direct sunlight. Thanks for your help!
I would trust what Earlene says. If it is not in the direct sun, it should be good. The risk would be to any heavy borders or decorations. The icing will soften, but it probably won't melt. Especially if it starts out nice and cold.