Abstract: Methods and apparatus for dynamic cold brew of flavor materials such as tea and coffee in which the flavor materials are exposed for a short time to turbulent flow water.

Abstract: A grill includes a grate for supporting food, an inner burner and an outer burner that are both mounted under the grate. A control valve is coupled to the inner and outer burners. The control valve has a first mode of operation which controls the heat produced by the outer burner only and prevents the inner burner from emitting heat. Food placed in the middle of the grate is exposed to indirect convection heating. The control valve also has a second mode of operation which controls the heat produced by both the inner and outer burners.