3.Fighting Germs
Apple cider vinegar — any vinegar, really — will kill some germs because of the acetic acid in it. It works best in your food — to clean up bacteria lingering on your salad leaves, for example. It’s not very good at disinfecting a cut or wound. And because it’s an acid, there’s a chance it could chemically burn delicate skin.
4.Jellyfish Sting
Yep! Tuck a bottle of vinegar into your beach bag. It stops the work of the special jellyfish cells (nematocysts) that deliver the venom — the stuff that makes a sting hurt.
When you get home, dunk the wound in hot water. That stops the venom itself from working.