less Steel: of stainless steel, the capsule is no rust, wear-resistant, corrosion-resistant, BPA free and dishwasher safe. It is super easy to clean after using it.Reusable Coffee s: capsules cannot be recycled or biodegraded, and a large amount of plastic waste that brings great harm to the environment remains. The reusable capsule made of food-grade stainless steel is the substitute for the plastic capsule.Keep Coffee : Eliminate the problem of powders souring, oxidation after exposure to air. It can freely fill your favorite powder, ensuring that everyone could quickly make a professional-grade standard .Firm ing Cover: Firm sealing cover allows the filled fresh powder to remain stable for a long time. The precise filter makes your taste more smooth.Guaranteed Coffee Taste: The capsule wall is in superior hardness for maintaining the prototype well at high temperatures, so that high-pressure steam can be injected into the capsule and the is completely precipitated with crema,