A kiln for firing basic ceramic articles; the kiln comprises: a conveying device for conveying the basic ceramic articles along a given path; at least one firing chamber, which is arranged along the given path and has a first input station and a first output station; and at least one heating device, which is adapted to heat the basic ceramic articles generating a temperature of at least 900°C, in particular at least 1000°C, in at least one firing area of the firing chamber; the conveying device is adapted to convey the basic ceramic articles along a first portion of the given path from the first input station to the first output station; the kiln being characterized in that it comprises at least one pre-treatment chamber, which is arranged upstream of the firing chamber along the given path and has a second input station and a second output station; the conveying device being adapted to convey the basic ceramic articles comprising organic compounds along a second portion of the given path from the second input station to the second output station; the kiln comprising, furthermore, at least one heating assembly, which is adapted to heat the basic ceramic articles generating a temperature of at least 600°C, in particular at least 800°C, in at least one thermal treatment area of the pre-treatment chamber, in particular so as to cause the organic compounds to at least partly evaporate and at least partially oxidize; at least one extraction assembly to extract gas, in particular the evaporated and at least partially oxidized organic compounds, from the pre-treatment chamber; and an open area, which is open in respect to the external environment and is arranged along the given path between the pre-treatment chamber and the firing chamber; the second portion of the given path extending at least partially though the thermal treatment area; the conveying device being adapted to convey the basic ceramic articles along a third portion of the given path from the second output station to the first input station. the kiln being characterized in that it comprises at least one pre-treatment chamber, which is arranged upstream of the firing chamber along the given path and has a second input station and a second output station; the conveying device being adapted to convey the basic ceramic articles comprising organic compounds along a second portion of the given path from the second input station to the second output station; the kiln comprising, furthermore, at least one heating assembly, which is adapted to heat the basic ceramic articles generating a temperature of at least 600°C, in particular at least 800°C, in at least one thermal treatment area of the pre-treatment chamber, in particular so as to cause the organic compounds to at least partly evaporate and at least partially oxidize; at least one extraction assembly to extract gas, in particular the evaporated and at least partially oxidized organic compounds, from the pre-treatment chamber; and an open area, which is open in respect to the external environment and is arranged along the given path between the pre-treatment chamber and the firing chamber; the second portion of the given path extending at least partially though the thermal treatment area; the conveying device being adapted to convey the basic ceramic articles along a third portion of the given path from the second output station to the first input station.