One of my biggest pet peeves about the palm container wax ( and one that has prevented me from ever marketing them) has been the dang air CAVERNS. I have tried every variation I could think of which includes pour temps., warming/not warming jars/, mixing with other types of waxes, tapping jars till I was afraid they would break, poking and repoking relief holes and then poking some more, hitting with the heat gun at various times, pouring at different angles, stirring as gently as possible to prevent air bubbles. Anyway I could go on and on with the things I have tried and to no avail but I kept thinking that one day I would in fact figure it out and I was determined to not give up and all because I like the way the wax looks in a clear jar and I get a pretty decent hot throw and really wanted to succeed with this wax. VICTORY!!!!!!!! When I was pouring those pita July 4 red,white,and blue in the hex jar I poured a very thin layer and let it cool, poured another thin layer and let it cool etc.etc. Probably no more than 1/8" thick at a time until I had the height of each color where I wanted it and then I let the finished layer completely cool before I started on the next color. I still poured at 200 but no more than 1/8" at a time ( maybe even less than that where there is a color change.) I did not poke any relief holes because since the layer was so thin I could see that there weren't any air pockets. I am now test burning one and there is not a single solitary air pocket I am doin the happy dance! I'm going to try some more batches to prove that this is indeed the cure. Sounds like it would be a hassle to do on a large scale but so worth it for me. Oh and it didn't effect the crystallization at all.