The ornamental design for a combinationportablebeveragebrewer and insulating beverage container, as shown and described.
FIG. 1 is a front view of the combination portable beverage brewer and insulating beverage container showing my new design;
FIG. 2 is a side view thereof;
FIG. 3 is an exploded view thereof;
FIG. 4 is a perspective view thereof;
FIG. 5 is a top view of the combination portable beverage brewer and insulating beverage container with the air hole in an open position;
FIG. 6 is a top view of the combination portable beverage brewer and insulating beverage container with the air hole in a closed position; and,
FIG. 7 is a bottom view of the combination portable beverage brewer and insulating beverage container.
The broken lines shown in the drawing depict portions of the combination cold brew coffee maker and insulating drinking container that form no part of the claimed design.