US inspected and passed by Department of Agriculture. www.glenmarkfoods.com. www.tastechicagosbest.com. This delicious line of Glenmark products uses only premium angus beef. Each and every one of our burgers is individually quick-frozen (IQF) to ensure optimum freshness and flavor. And like all our products, Glenmark burgers are made in Chicago under our rigorous quality control standards. Premium quality. Got a Taste for a Great Burger? We've combined our juicy, delicious taste with the speed and convenience of cooking direct from your freezer! Look for all our other quality Glenmark products in your grocer's freezer. Proudly made in Chicago.