As someone else mentioned, there have been issues with boxes of 464 produced in the summer months. From what I have read, you want to stock up on wax before the summer because it seems moisture gets into the wax at the manufacturer. I had a box with a June date, and everything was fine until about halfway to the bottom of the box. I got to the point where every candle had huge sink holes, and a few random candles had very bad cottage cheese tops. Normally, the tops are very smooth. I switched to another box of 464 with an April date on it, and all those problems went away. I hate wasting wax, so I use the June wax for testing (and use a heat gun to fix the problems) and use the April wax for fulfilling orders.