A coffee machine is an automatic brewing system for making coffee.

A coffee machine is an automatic brewing system for making coffee. Before the invention and widespread use of this appliance, people used a variety of manual coffee brewing equipment. Different brands and models of home or commercial coffee machines are available on the market today. These electric coffee makers are usually covered with a metal or plastic casing.

Most commercial coffee makers are designed for high usage restaurants and other food service businesses. Regularly used home coffee makers only have a few years of life, but replacements are also inexpensive. A coffee maker usually includes a sink, filter, brewing system, and a glass or ceramic jar. Some machines have a base, others may offer different functions such as timers and clocks. These models of coffee machines are capable of brewing a certain amount of fresh coffee at a specified time.

Philips coffee machine picture

It should be noted that today's electric coffee machines are still based on the basic concept of pre-19th century brewing coffee. The steeping process of water through a hollow cylinder up through coffee dates back to 19th century France. The United Kingdom first developed a vacuum coffee machine in the mid-10th century, which sent water from one tank to another through a vacuum mechanism channel, and then a valve controlled the flow of brewed coffee.

Modern coffee machines generally use automatic dripping, a process also known as drip brewing. The water is first put into the water storage tank of the device. Many coffee makers use paper filters. The ground coffee is put into the filter. When plugged in, the automatic drip brew process begins, usually producing coffee within a few minutes.

Automatic coffee machines generally have a keep warm feature, which keeps the coffee in the glass jug warm. Home coffee machines typically brew 10-12 cups of coffee at a time. Of course, there are also mini coffee machines that can only brew 1-2 cups of coffee at a time. Many coffee makers can be placed directly on the countertop, but there are also models that can be built into cabinets to save space. Different models of coffee machines use different shapes of paper filters, but cones and rounds are the most common.