Soy Wax Candle Forum - Online resource for soy candle makers

I use the ecosoy wax and use dye in most of my candles. However, I make some soy candles in frosted jars and I do not put dye in those. The candles turn out wonderful but a month or two after then have been made, they seem to discolor in the top center of them -- looking like a light brown. Is there a reason for the discoloration? (Once I have these candles made, they are stored with clear plastic lids on them and packed away in boxes.) I'm not sure if I should sell them because I don't know if customers would have a problem with this.