I used to always pack a whole vacuum sealed salami sausage as the high caloric, non-perishable emergency food. Then one day I decided to try it in a simulated food emergency situation. Here's my experience:
At home, I have a cutting board, a long knife on a wide kitchen counter. On the trail, it was a pain just to get that heavy duty vacuum seal plastic wrap. My lightweight serrated-edge bull-nose spyderco knife did not make the task easy or safe. Eventually got thru the vacuum sealed plastic.
The salami sausage has the "hotdog" paper-thin casing, which is not eatable. Slicing thin rounds snacks of that salami sausage was not successful. My fingers were greasy from removing the plastic, and working the small knife was getting dangerous, with slippage. Rounds were quarter to half inch wide/thick.
Gnawing on wide thick-cut salami chunks was gross. it was 55F, cold by So Cal standards, and the salami chunk fats required extra chewing, and they got stuck between my teeth.
That whole process to get consumption rolling took about 30 mins for the first bite.
Now I have greasy fingers, a greasy knife handle, greasy serrated edge hard to clean, salami gristle between my teeth, and cold fats were not as tasty as at home.
Since then, I took the "emergency salami sausage" out of the emergency food gear list. I could take pre-sliced deli salami, that is ready to eat, but because it's sliced the air pockets make it perishable within a couple of days.
Had this been a real emergency, with a mild injury, the salami sausage would make things more of a nuisance, tending to a wound, mending gear, handling shelter and sleep system, with greasy hands.