Be sure your containers are clean and wicks centered. Try a different fragrance and dye. Pour, cooling and storage temperatures are very important. Try altering the pour temperature either up or down by 10 to 30 degrees. Slowing the cooling rate may also help. Cool storage will cause the candle to pull from the container, store at temperatures of about 70°F. Also, click on Isolating CB Problems or Isolating PB Problems.