I've been dabbling in poured sugar for a while, beer bottles, dolls....and I always end up with tiny bubbles all over the finished product. Funny thing is, when I break up the bottle, the INSIDE of the bottle is nice and uniform!!!....My mold does not have bubbles on it, the isomalt is melted and then let to rest for 15 min. in the oven at 265....I tried warming up the mold.....nothing helps. Any suggestions?