A wine bottle is a container specifically designed to hold wine. Typically made of glass, these bottles come in various shapes and sizes, with the standard size being 750 milliliters. The bottle is sealed with a cork or a screw cap to preserve the wine's quality and prevent oxidation. Wine bottles are often labeled with information about the wine, including the grape variety, vintage, and winery. The color of the glass can vary, with green and brown being common choices, as these colors help protect the wine from light exposure, which can affect its taste and quality over time.