Samples of frozen foods representing major pack items and container types currently in use were exposed to the effects of a nuclear explosion on May 5, 1955, at the Nevada Test Site of the Atomic Energy Commission as part of Operation Cue of the Federal Civil Defense Administration. Exposure was made at close-in positions and in freezers located in homes. Recovered samples were found to be free of physical and thermal damage. Kinesthetic evaluation proved the retention of flavor, color, appearance, and texture. Scientific tests indicated the retention of vitamins, minerals, and proximate composition at all exposures well within ranges observed during good commercial manufacture. Samples from exposures in homes were recovered free of induced radiation. It is concluded that, under emergency conditions similar to this exposure, frozen foods may be used for both military and civilian feeding. (Author).