Ok I'm started my seasoning process. Sprayed the inside with Pam and let it heat up. Then added some hickory chips. After about 30 min I added apple chips. Five minutes later instead of a smooth stream of smoke there were puffs. About every 30 seconds or so there was another large puff. Is that normal? The temp went up about 10 degrees. The puffs stopped after a couple minutes. Hope I don't sound too stupid asking this.