Ans.

When you make a pot of coffee, the first thing you do is fill the holding chamber with cold water. Inside the chamber, you will see a piece of rubber tubing stretching from the bottom of the chamber to the top. At the bottom of the holding chamber, you will see a hole. When you turn the coffee maker on, water is drawn into the hole at the bottom of the chamber. At the same time, electricity is delivered to the heating element and the warming plate begins to heat. The water travels through a one-way valve into an aluminum tube which wraps around the base of the warming pad. Inside the tube, the water is boiled using the same heat that is making the warming pad hot. Once heated, the water travels back up through the black rubber tube and drips onto and through the grounds of coffee.

The coffee maker has a number of temperature sensors designed to cut the power to the coil if it starts getting too hot.