I like to cook, and there are some items I couldn't live without in my kitchen. One of them is the Tupperware Quick Shake Container. I typically use this whenever I have to mix milk and flour for things like soups and other bases. The container is made of plastic, with measuring amounts on the side of the container. Then, inside the lid, there is a plastic circle with holes that allows the liquid to mid all around the container. The plastic lid has a small opening at the top with a cap that you can place over it. This is so much easier than whisking items, and it's really convenient for washing and storage. I always put this in the dishwasher, on the top shelf, and I never had a problem with it melting or the measurement markings washing off the side of the container. Also, tupperware products are really affordable, so it wasn't a big investment to buy this quick shake container.