Oddley
As Platypus pointed out, the fog in a shallower container would overspill the edges and drop on and around the chorizo. I don't know what humidity levels would be like but I suspect I would have to purchase a timer and go through a lot of experimentation to find the optimum level, which is why I chose to stick with the setup as is, because it gives a desirable overall humidity reading generally.
As I say the casing of the chorizo appears to be on the dry side, and so far still seems relatively soft internally. I reckon air circulation would probably help somewhat but I feel that I would then probably need the timer. All speculation you understand. I will be more than happy should this experiment produce good chorizo.
Regards, Paul kribs