The standard size of a beverage pitcher typically ranges from 32 ounces (approximately 0.95 liters) to 128 ounces (approximately 3.8 liters). The most common size for a pitcher used in restaurants and bars is around 60 to 64 ounces (approximately 1.8 to 1.9 liters). This size is ideal for serving multiple drinks, such as water, iced tea, or beer, to a group of people. 
Pitchers come in various materials, including glass, plastic, stainless steel, and ceramic, each offering different benefits. Glass pitchers are popular for their aesthetic appeal and ability to showcase the beverage inside, while plastic pitchers are lightweight and durable, making them suitable for outdoor use. Stainless steel pitchers are often used for their insulating properties, keeping beverages cold or hot for longer periods. Ceramic pitchers, though less common, are valued for their decorative designs.
The choice of pitcher size and material often depends on the intended use. For instance, smaller pitchers, around 32 to 48 ounces, are often used for personal or small group servings, while larger pitchers, such as those holding 96 to 128 ounces, are more suitable for parties or large gatherings. 
In commercial settings, the 60 to 64-ounce pitcher is favored for its balance between capacity and ease of handling, allowing servers to efficiently serve multiple guests without frequent refills. Additionally, some pitchers come with features like spouts for easy pouring, lids to prevent spills, and handles for better grip, enhancing their functionality.