Hoping to get some help as I'm curing my first soppressata with little expertise other than what I read on the Internet and some memories of my grandfather. The meat was pork butt with salt, pepper, and a varied amount of other spices, with grappa added in before stuffing.
I've repurposed an old wine fridge that currently sits at 55degrees F and 65% humidity.
I'm about 3 weeks in and the meat is definitely losing size and weight; however, I am getting what look like veins of air bubbles between the meat and the natural casing. The meat was packed tight initially with no bubbles, but I've noticed these on just about all of the meats. It seems to me like the meat is shrinking but the casings are not - but that's obviously a beginner's perspective. Can someone please educate me on:
1. Is this normal and, if not, what causes this and how do I prevent it in the future?
2. Is there anything I can or should do such as use a pin to pop these, squeeze them out, tie them tight with string, wipe down with something, etc?
I'm really hoping to salvage these because otherwise they seem in good shape.
Thanks!