Occasionally, white marks may appear on soy candles. These white markings are called frosting and is a natural characteristic unique only to 100% pure soy wax. It is not a flaw and does not affect the scent throw or burning properties of the candle. Frosting is a particular crystal growth of vegetable oils. This can cause the candle to look like it's drying out but in actuality, this is just the characteristic of that crystal structure and has nothing to do with the candle "drying out".
Often times, customers will look out for this unique marking when purchasing soy candles as it is a way for them to know if the candle is made with pure, all-natural soy wax. It's all part of the soy experience.