what is the mother in apple cider vinegar

In apple cider vinegar, "The Mother" is a gelatinous and opaque substance that forms during the fermentation process. It is a culture of beneficial bacteria that transforms apple cider into vinegar. The Mother is often regarded as the most nutritious part of the vinegar. It can form in any unpasteurized vinegar, but it is most usual to find it in apple cider vinegar. The Mother is left in live vinegars as it is left unpasteurized and unfiltered, so elements of The Mother remain. The Mother is the catalyst that gives rise to the vinegar. It is the healthiest part of the vinegar and provides the most health benefits. The unfiltered and unrefined vinegar with cloudy and murky appearance is called apple cider vinegar with "The Mother". It is used for drinking purposes and has many health benefits due to the presence of beneficial bacteria, yeast, and protein.