How long will cured meats stay good?
Short answer: they’re cured, so they’ll last a while!
Long answer: Curing is an ancient process that makes meat safe by keeping it inhospitable to the microbes that would otherwise cause rot. Curing is what differentiates a sausage (uncured) from a salami (cured).
Curing works its magic by eliminating bad bacteria from meat in two ways. First, by drying. Bacteria need moisture to grow and curing deprives them of it, usually with a combination of salt and some environmental measures, like dehumidified aging rooms. Second, by fermentation. Fermentation makes a salami acidic, which kills the bacteria. Not every cured meat is fermented – cured hams aren’t, for example – but they’re all dried. Once the process is complete, cured meat is safe from the bacteria that would spoil it. That means it can be stored at room temperature for a long time, until we’re ready to eat it.
Cured meats like salami, prosciutto, and ‘nduja will last for weeks or even months if stored correctly and unsliced. Slice salami as you eat it – keeping it whole will help prevent it from drying out.
What if it arrives warm?
We don’t necessarily ship cured meats with ice packs. Since it’s cured, it’s healthy and happy at warm temperatures. To prolong its life at home keep it refrigerated. But hours or even days at warmer temperatures won’t harm it a bit.
What’s up with mold on salami?
Downy white mold is as essential to salami flavor as blue mold is for blue cheese. Every good salami has mold on it at some point in its life. It’s a sign the salami is aging well; the mold protects the fat from going rancid. If you’re buying one without mold it was probably washed off at some point. It’s edible, but you can also wash it off with a bit of vinegar and water if you’d like. If a little mold returns in time it’s a good sign.