In a nutshell (or a freezer bag ), it’s rehydrating/cooking yer nosh with near boiling water in a freezer bag insulated in a little home-made cosy. Great for lightweight, washing up free excursions.
However, not without its problems as I don’t think that the others were too impressed with my spontaneous campfire-side custard fountain caused by the action of a spork’s prongs on the delicate fabric of a freezer bag
sounds impressive, did you dehydrate the food yourself? If you went for a spoon instead of the spork would that minimise the risk?