Terry,
In my view the white mould (a penicillium) is always a desirable mould. Whether or not it is desirable for a particular product is a matter of taste/tradition. However its presence will protect against "undesirables" that's why I say it's always desirable (if something is going to grow I'm thankful it's friendly).
The ice on your cooler element (obviously NOT "frost free") will make your fridge work a little harder. If the contents have finished curing and are just maturing then it won't hurt them to be out of there for a couple of hours while you defrost the thing.