
Based on the provided information, a standard bottle of liquor contains 50 milliliters (ml). Retailers, such as the referenced Blackwell's Wines & Spirits, explicitly categorize and sell these products under the "50-ml Mini-Bottles" designation. This volume is a widely accepted industry standard for what is often referred to as a "miniature" or "airplane" bottle.
This 50 ml measurement is equivalent to approximately 1.7 U.S. fluid ounces. In the context of standard drink sizes, this volume contains slightly more than one standard shot. A typical shot in the United States is 1.5 fluid ounces (about 44 ml), making a 50 ml mini-bottle a single-serving container. Therefore, the definitive volume for a mini bottle of spirits is 50 ml.


