Lift open the top lid on the Keurig brewer and fill the water tank with filtered or bottled water to the fill mark.
Set a cup or mug on the drip tray and plug the power cord into a power supply. Press the "Power" button to turn on.
Lift up the handle to open the "K-Cup" holder and set a Keurig K-Cup into the holder. This is the individual-sized beverage packet, sold through Keurig or in select stores. Use caution, as there are two needles in the holder to puncture the K-Cup during use.
Push down on the handle to close the K-Cup holder.
Press the desired cup size. "Small" will brew a 7.25 ounce serving and "Large" will brew up to 9.25 ounces.
Wait for the system to finish brewing and to cool before raising the handle to remove and discard the K-Cup.