A system for preparing an individual serving of coffee using a liquid coffee concentrate includes a sealed container containing an amount of liquid coffee concentrate for the preparation of an individual serving of coffee. The system may include a coffee maker operable to prepare a single serving of coffee from the liquid coffee concentrate contained in the sealed container, the coffee maker including a coffee maker recess for receiving the sealed container, a needle for piercing an entrance hole in an upper portion of the sealed container while the sealed container is in the coffee maker recess, a water conduit by which water from a water source flows into the sealed container through the entrance hole, and a heater for heating the water. The system may include an adapter for receiving the sealed container and positioning the sealed container in the coffee maker recess.