The Vitamix blending cup is great for making personal smoothies without the hassle of washing extra dishes. Each container is made of BPA-free Eastman Tritan®, and insulated to maintain cold temperatures. Weither you want to chop ingredients for a meal or make smoothies, juices, salad dressings. The Blending Cups are highly versatile. The containers, lids, and blade base are all dishwasher-safe.