K-Cups are single-serving coffee pods designed for use in compatible coffee machines, primarily the Keurig brand. Each pod contains a pre-measured amount of ground coffee, tea, or other beverages, sealed in a plastic cup with a foil lid. This design allows for quick and convenient brewing, making it easy to enjoy a fresh cup of coffee without the need for measuring or cleanup. To use a K-Cup, you simply insert it into the machine, select your desired cup size, and press a button. The machine then punctures the pod and forces hot water through it, extracting the flavor. This method has gained popularity for its speed and variety, as there are numerous flavors and brands available.