I just managed to do a chocolate mousse with 5 layers (sponge, chocolate thin layer, nougat mousse, dark chocolate mousse, ganache). I added some "Agar Agar" to make it more firm and put them in the fridge to rest. Having used some INOX iron disc ring to give them shape (see photo) I wonder how I will be able to remove the ring leaving intact the mousse.
I thought I could use a little gas torch but I am not sure whether it is best to leave them in the fridge or to put them in the freezer so they get a bit more hard and less likely to get ruined when I extract the ring with the torch. In other words, I am worried that leaving them in the fridge they will be too fluffy to allow the disc ring to remove without damage.
What is the best way to remove them?