Smooth: Use only Coarse ground coffee to avoid sediment. Airtight: Secure lid helps preserve flavor and keep fresh longer. Easy: Brew for 18 hours, then remove the filter, place the lid back on, and enjoy. Reusable Filter: Filter made of fine mesh Stainless Steel to reduce sediment for ultra-smooth cold coffee. Filter locks into place and includes a handle for easy removal. Handle folds down when not in use. Convenient: Fits in most refrigerator doors. Top-rack Dishwasher Safe.