National Apple Cider Vinegar Day is observed in the USA on September 23 each year. This unofficial holiday celebrates apple cider vinegar, a versatile product made from fermented apple juice, which is commonly used in cooking, preserving, and DIY personal care. The day was established in 2021 by Bragg Live Foods, a health food company known for its organic apple cider vinegar products. Celebrations typically include sharing recipes, experimenting with new dishes, and creating DIY skin or hair care products using apple cider vinegar. Participants often promote the holiday on social media using hashtags like #NationalAppleCiderVinegarDay. It is important to note that this day should not be confused with National Vinegar Day, which is celebrated on November 1 and honors all types of vinegar.