A blender jar is a container designed to hold ingredients while they are blended. Typically made from glass or durable plastic, it features a wide base to accommodate various food items and liquids. The jar is equipped with a lid to prevent spills and often has measurement markings on the side for easy portioning. The jar connects to a blender base, where the motor and blades are located. When the blender is turned on, the blades spin rapidly, mixing and pureeing the contents inside the jar. This makes it ideal for creating smoothies, soups, and sauces.