A blender is a kitchen appliance used to mix, puree, or emulsify food and other substances. It typically consists of a motorized base, a container with a lid, and sharp blades that rotate at high speeds. Blenders are commonly used to make smoothies, soups, sauces, and other blended dishes. There are various types of blenders, including countertop blenders, immersion blenders, and personal blenders. Countertop blenders are the most common and are ideal for larger quantities, while immersion blenders are handheld and great for blending directly in pots or bowls. Popular brands include Ninja, Vitamix, and Breville.