• Container made of 304 stainless steel with a BPA-free airtight silicone lid. • Integrated one-way valve that removes CO2 and protects against oxygen to preserve flavor. • Includes an adjustable calendar wheel on the lid to track coffee freshness. • 1800 ml capacity suitable for storing up to 635 g of coffee beans or ground coffee. • Versatile design suitable for preserving tea, nuts, legumes, and spices. • The set includes a 30 ml measuring spoon and a compact 70 ml travel jar.