Combination cup and brewer

A system produces a brew from an infusible brew substance using a combination of a mug and a brewer housed within the mug. The mug includes a vessel inside the mug that holds the water used to brew the brew. The vessel has an exit port below its upper rim. A removable stopper closes the vessel. A siphon tube fits through the exit port and extends downward within the vessel to the siphon's suction end. A heating element is immersed in water within the vessel. When electrically energized, the heating element vaporizes the water, which rises to the top and pushes the water downward into the suction end. A mesh filter holds the infusible brew substance or the substance is placed in the bottom of the mug. The mesh filter is located below the siphon sticking out of the exit port. Water flows through the filter into the mug outside the vessel.