Kirkland Signature Organic Unfiltered Cider Vinegar 32 Ounce (Pack of 3) Kirkland Signature Organic Cider Vinegar is made from fresh pressed organic U.S. apples, fermented with no added yeast or enzymes, and never from concentrate. This process produces a premium raw vinegar with live cultures known as the "Mother". USe Kirkland Signature Organic Cider Vinegar for baking, dressing salads, or add it to your beverage of choice.