Drip coffee is a type of coffee made by pouring hot water onto ground coffee beans, allowing it to brew. There are several methods for doing this, including using a filter, and terms used for the resulting coffee often reflect the method used, such as drip-brewed coffee, filtered coffee, or immersion-brewed coffee in general. Drip coffee is typically made using an automatic drip coffee machine, which heats water from a reservoir and then passes it over coffee grounds in a filter basket. The brewed coffee is then collected in a carafe or other container below. Drip coffee is often referred to as filter coffee because it relies on filters to produce a quality brew and reduce grittiness from coffee grounds. The caffeine content of drip coffee is between 115-175 mg of caffeine per 8 oz cup, and the exact amount of caffeine will depend on the brew strength and the type of beans used to make the coffee. Drip coffee is great for casual coffee aficionados and those who prefer convenience or need to brew enough coffee for a group.