Since our wax melts and candles are 100% natural with no dyes and no additives, frosting may occur. The candles and wax melts that you might purchase at the supermarket are filled with chemicals and additives that prevent the natural process of frosting, however, it is typical of all natural soy wax and is not a product flaw. Frosting does not effect the scent or the performance of our wax melts or candles.