An insulating jacket for a press-type coffee maker (coffee press) is described. A coffee press brews coffee by having ground coffee placed in a heat resistant container (typically glass) and boiling water added. The mixture is allowed to brew for a specified period after which a plunger affixed to the top of the container having a filter screen at the lower end, is pushed downward into the container, separating the coffee grounds from the coffee. Coffee press coffee makers provide a superior flavor, however heat tends to dissipate rapidly from the container. The invention includes an insulating jacket extending from the top end of the coffee press to its base with openings provided for the handle and the spout of the coffee press. A central hole, surrounded with elastic so that it fits tightly around the plunger rod, is provided in the top end of the jacket to permit the plunger of the coffee press to be activated while the jacket is in place. Openable members are provided to secure the jacket about the opening for the handle so as to prevent unnecessary heat loss and to permit visual inspection of the remaining level of coffee. A hinged flap seals the spout opening when the coffee press is placed on is base and swings upwardly from the spout when coffee is poured. The flap may be closed with a magnet to further secure heat within the coffee press. An insulated pad may be provided for use beneath the base of the coffee press which is hingedly attached to the lower perimeter of the jacket.