A door opening system for a domestic appliance , the door opening system including at least a support structure and one pivoting door , wherein - the door opening system comprises at least one door hinge , - the door opening system comprises at least one hook mechanism , - the hook mechanism includes a hook element engageable with a recess in a closed state of said door , so that the hook element and the recess form a snap-in mechanism, - the hook element is disengageable from the recess by operating a control element or said hook element , - the door hinge includes a stationary hinge part and a pivoting hinge part , - the stationary hinge part is provided for the support structure of the domestic appliance , while the pivoting hinge part is provided for the pivoting door , - the stationary hinge part is arranged or arrangeable horizontally inside or at the support structure of the domestic appliance , - the stationary hinge part comprises a first spring element , - the door opening system comprises a second spring element formed as a separate part, - the second spring element is suitable to be arranged at a flange or door frame enclosing a cavity or at the pivoting door , - the first spring element and the second spring element are provided for generating horizontal forces in the mounted state of the door hinge at the domestic appliance , - the first spring element is provided for keeping the door balanced within an outer opening angular range of said door , - the second spring element is provided for generating an horizontal opening force for the door within an inner opening angular range, so that the door is pushed into a partially opened state, - the inner opening angular range extends between a closed state and the partially opened state of the door , and - the outer opening angular range extends between the partially opened state and a completely opened state of the door . - the door opening system comprises at least one door hinge , - the door opening system comprises at least one hook mechanism , - the hook mechanism includes a hook element engageable with a recess in a closed state of said door , so that the hook element and the recess form a snap-in mechanism, - the hook element is disengageable from the recess by operating a control element or said hook element , - the door hinge includes a stationary hinge part and a pivoting hinge part , - the stationary hinge part is provided for the support structure of the domestic appliance , while the pivoting hinge part is provided for the pivoting door , - the stationary hinge part is arranged or arrangeable horizontally inside or at the support structure of the domestic appliance , - the stationary hinge part comprises a first spring element , - the door opening system comprises a second spring element formed as a separate part, - the second spring element is suitable to be arranged at a flange or door frame enclosing a cavity or at the pivoting door , - the first spring element and the second spring element are provided for generating horizontal forces in the mounted state of the door hinge at the domestic appliance , - the first spring element is provided for keeping the door balanced within an outer opening angular range of said door , - the second spring element is provided for generating an horizontal opening force for the door within an inner opening angular range, so that the door is pushed into a partially opened state, - the inner opening angular range extends between a closed state and the partially opened state of the door , and - the outer opening angular range extends between the partially opened state and a completely opened state of the door . <EOS>