The invention relates to a cooking oven chamber with at least one cooking level, two mutually opposite side walls (14, 16) and at least one pull-out system (28, 30, 32) that is positioned on a first side wall (16) for guiding at least one retaining device (8), serving to hold at least one food carrier (10, 12), between a cooking position in which the said minimum of one food carrier (10, 12) is inside the oven chamber (2) and a servicing position in which the minimum of one food carrier (10, 12) is partly or completely outside the oven chamber (2).