StillTasty is a potentially useful website that provides guidelines on how long your food will remain good to eat if kept in storage. It contains information on how long things will keep in the pantry, in the refrigerator, and in the freezer. It also contains storage tips.
Unfortunately, it doesn't contain individual citations indicating information sources. The only citation information that I see indicates that the information was gleaned primarily from a variety of U.S. government agencies.
To me, that suggested that the information was, perhaps, a bit overcautious. These are the agencies that decided to redefine the temperatures of what counts as rare and medium rare cooked beef so that they corresponded to traditional definitions of medium and medium well. I did a bit of poking around, and, yes, the information here is overcautious: they indicate that preserved foods such as beef jerky and pickles should be refrigerated if opened and have no safe pantry life (measured in days). Still, it is better to be overcautious when health is concerned.