She has also been gracious to offer her firing schedule for this project for anyone else that may want to duplicate it.
The bottle fuse & slump in one firing is:
325 to 1000 hold 10
300 to 1360 hold 30 (this varies with the type of bottle – see note below)
Full to 970 hold 45
Note: Different bottles fuse at different temps. I’ve gone as high as 1380 and as low as 1350. Sometimes I get little spurs on the sides which if they are small enough I smooth out with sand paper. If they are too big to sand, I refire at a lower temp.