How (not) to bake a potato...

I heard that you can bake a potato in a compost heap, so I thought I'd give it a go just to explore another way of cooking. After doing a little reseach, I learnt that it needed to be a 'hot copost', this means that it's one that is maintained weekly. Unfortunately I didn't have acess to a hot one, so here's what happened when I tried it with a normal, no-fuss heap which was still quite warm in the centre.