The present invention relates to a burner having a burner head, in which at least one first (2) and one second (1) feed channel for feeding reaction medium to a reaction zone is arranged. The surface of at least the first feed channel (2) is formed at least in the region of the reaction zone-side end of the burner head by a material containing aluminium, whilst the surface of at least the second feed channel (1) consists of an aluminium-free material.
