1. High-quality materials: This coffee filter is made of 304A food-grade stainless steel and uses an 800-mesh ultra-fine mesh filter to reasonably control the extraction time and achieve the extraction rate. 2. Environmental protection and hygiene: Traditional disposable coffee filters are not only expensive, but can only be used once. Using our reusable hand-brewed coffee filter is not only convenient to use, but also environmentally friendly. 3. Easy to carry: We use a detachable design, the filter paper and the holder can be separated, so you can carry it with you even when traveling or camping. Our holder is suitable for most cups, mugs or water bottles, allowing you to easily complete handmade coffee making. 4. Easy to clean: Our stainless steel coffee filter can be easily rinsed and dried with water, and can also be put in the dishwasher. After enjoying the coffee, please clean it as soon as possible to avoid difficulty in cleaning the coffee grounds after drying.