Aerolatte's number 2-size Filter Cone is designed to brew 2 to 6-cups of coffee using the manual, pour-over coffee method. Making fresh-brewed coffee in smaller amounts allows for a more enjoyable, aromatic and flavorful brew with less waste. No more stale or burnt coffee made hours ahead. The pour-over coffee method is a time-tested Japanese technique that offers complete control over the quality and flavor of brewed coffee. Pouring a thin, slow, steady stream of water over the ground coffee allows for a distinct, flavorful result every time. Aerolatte's Filter Cone is the coffee accessory for making pour-over coffee. Simply rinse the Coffee Filter Cone with hot water to warm it thoroughly.