[felixe the dog]

What you need to remember is that the higher you cook the isomalt the harder it becomes.

160 degrees celcius is sufficient for blowing or pulling smaller items.

For casting, or blowing/pulling larger items I would be inclined to go to 170 or 175 degrees celcius for added strength - this all depends on what you are doing.

Tips for moulding isomalt - I am not sure what you plan to do.

For using 2 part molds be sure the mold is not too cold so you can "slush" the isomalt around, also be sure the "bottleneck" or "opening" is sufficient for air to escape, and finally you should consider a sprue hole or 2 when making your mold to help air escape and the isomalt circulate to all parts of the mold.

Good luck.