Vinegar
Vinegar is so acidic that it can actually preserve itself! Now that is something. The only time you will need to put vinegar in the fridge is if you’ve chopped up some fresh vegetables or herbs and thrown them into the mix, and even then you can wait. So even though they’ve written an expiration date on the vinegar bottle, you really don’t need to pay it any attention.
Salami
Sa-lami tell you something you might not have known already. Most salamis are actually meant to be kept out of the cold because they need to “breathe”. It’s no wonder that backpackers love grabbing a few of these when going on long hikes. If your salami reads that you should keep it in the fridge, then of course you should.