What is the standard serving size for wine?

The standard serving size for wine is 5 ounces, which is approximately 150 milliliters. This measurement has been widely adopted in many settings, including restaurants and tasting events, as it allows for a proper balance between enjoying the flavors and aromas of the wine while preventing overconsumption. A 5-ounce pour is also approximately one-third of a standard 750ml bottle, which is the most common size for wine bottles, making it a practical choice for both serving and tasting.

This standard size acknowledges that wine can be a high-alcohol beverage, thus facilitating responsible drinking. Additionally, a 5-ounce serving is conducive for tasting, allowing the drinker to assess the wine's characteristics without overwhelming their palate. This standard also aligns with various health guidelines that recommend moderation in alcohol consumption.