Yes soy can be sneaky. You think that you avoided frosting once they have been cooled and stored away. Yet later on, usually due to the change in temperature, that frosting will start showing up. Its best not to color the c-3 this time of year. I find its the cold weather that likes to make them frost. Even if you are able to prevent it with the candles you have on hand, once the customer gets them into their possession, the way that the store them or burn them, may also cause the frosting to appear. Even if you do explain to them about natural frosting with soy, they will be turned off by your product, once the frosting messes up the pretty color that they were once attracted to.