You can find directions for many of the Gramercy products we have reviewed in the table below.. You can contact Gramercy via Gramercy Web Support or by telephone at -. Their product line includes Air Fryers, Coffee Makers, Electric Frothers, Electric Kettles, Ice Cream Makers, Juicers, Kitchen Gadgets, Kitchen Thermometers, Slow Cookers and Sous Vide. . Gramercy products come with the following warranty: 1 Year. Gramercy products come with the following warranty: 1 Year.