Hi, I am new to this forum, but not to making soy candles. I have had the same experience, I even had a lady buying a sage & citrus candle, when she opened the top, she said ohhhhhh, is that the sage sticking out, how clever. LOL ummmmmmm. Personally, I think this bubbling up, or brain is caused by excess air in the candle, when put in a warm place it softens the wax causing the air bubbles to rise, hence itcky weird looking candle, IMHO. I do poke, stir and bang the bottom of the candle (gently of course). I dunno, but it is frustrating. Soy can be a real PIA.