Okay for some unknown reason I keep getting little tiny spots in my colored icing. I read somewhere if salt isn"t dissolved it will leave spots. How do I fix the problem! It is so frustrating. I did a cake last weekend. icing was exact shadeI wanted. put it in a cake box. next morning i took it out and it had tiny little white dots all over it. I was so annoyed. what can you guys tell me to make this STOP!! thanks in advance!!!

I think if you use popcorn salt then that doesn't happen. It's a really fine grain.

Yes, many people think it is the undissolved salt however.......
I have had students who didn 't use salt at all and still have the spots in their icing.
I really don't think there is a true answeras to why this happens to some.