While the acidic properties of apple cider vinegar keep it from ever truly going bad, you'll still find an FDA-required expiration date on the bottle—usually between 2 and 5 years.

Apple cider vinegar has been used as a home remedy for infections and heartburn. Preliminary research shows it may also help lower blood sugar, aid in weight loss, and improve depression.

Apple cider vinegar has long had a reputation as an elixir that can do wonders for your health. To some extent, its reputation is deserved.