Incubator for food detection

The utility model discloses an incubator for food detection, which comprises a constant-temperature incubator, a filter box and an observation cylinder, the filter box is fixed on one side of the constant-temperature incubator through a bolt, a small draft fan is mounted at one end in the filter box through a mounting rack, and a first filter layer is fixed on one side of the small draft fan through a clamping groove; a second filter layer is fixed to one side of the first filter layer through a clamping groove, an observation cylinder is arranged at the top of the constant-temperature incubator in a sleeved mode, a convex lens is fixed into the observation cylinder through a clamping groove, a protective lens is glued to the bottom in the observation cylinder, and a heat insulation layeris glued to the inner side of the observation cylinder. The device is simple in structure, air or oxygen can be filtered, meanwhile, food samples in culture can be conveniently observed, and the device is suitable for being w