I bought a 2.5 kg salami, it's currently hanging from the ceiling in my basement, where it could probably hang for a few months without spoiling. However, of course I don't want to have it just hanging there, I want to eat it too, but I won't be able to eat it all at once (or in a week). So, if I cut off a part of it to eat, what should I do with the rest of the salami? I guess the cut surface will be vulnerable to spoiling, since it won't have any protective skin or coating? But will the rest of the salami spoil as well, or can I still keep it hanging in the basement (and just trim off the cut end whenever I want to eat some more)?