The terms cider vinegar and apple cider vinegar are generally considered synonymous. Both refer to a vinegar made from fermented apple juice. The fermentation process involves converting the natural sugars in apples into acetic acid, which gives the vinegar its characteristic sour taste and distinctive properties.
This type of vinegar has a long history of use in both culinary and traditional medicine practices. Its purported benefits include aiding digestion, managing blood sugar levels, and possessing antimicrobial properties. While research into these benefits is ongoing, its use as a food preservative and flavoring agent is well-established.