A burner (100, 100') designed for making a combustion product in order to supply, in a swirling manner, at least two combustion educts (R; R-F; R-O), at least one combustion educt as a fuel medium (R-F) and at least one combustion educt as an oxidation medium (R-O) and at least one process medium comprising inerting properties in total to a combustion chamber arranged downstream of the burner (100, 100') in the flow direction, such that a swirl-stabilized flame is formed in the combustion chamber, wherein the burner (100, 100') comprises at least one swirl generator to stabilize the flame, wherein the burner (100, 100') has openings (11, 31) in at least one inlet device (20-1; 20-2; 20-3), via which partial mass flows can in each case be supplied separately from each other to the combustion chamber as follows: separate supply of the combustion educts (R-F; R-O) via educt injection openings (31a, 31i) and separate supply of the inerting process medium via at least one opening, or separate supply of the combustion educts (R-F; R-O) via educt injection openings (31a, 31i), by pre-mixing at least one of the combustion educts (R-F, R-O) with the inerting process medium to form a process medium-educt mixture (MR; MRR-F; MRR-O), and separate supply of the inerting process medium via the at least one opening, wherein the at least one inlet device (20-1; 20-2; 20-3) comprises at least one passage (A1, A2, A3), in which the educt injection openings (31a; 31i) arranged separately from one another are arranged for separately supplying the combustion educts (R-F; R-O) or the process medium-educt mixtures (MR; MRR-F; MRR-O), wherein the at least one inlet device (20-1; 20-2; 20-3) has the at least one process medium supply opening for separately supplying the inerting process medium, wherein at least one of the educt injection openings (31a, 31i) of at least one combustion educt (R-F; R-O), viewed downstream of the burner (100, 100'), is arranged at the exit of the at least one inlet device (20-1; 20-2; 20-3) of the combustion chamber, wherein the inerting process medium propagates in the at least one passage (A1, A2, A3) and reaches the educt injection openings (31a; 31i) such that the partial mass flows of the combustion educts (R; R-F, R-O) and/or the process medium-educt mixtures (MR; MRR-F; MRR-O) are displaced by the injection openings (31a; 31i) and converge while forming the swirl-stabilized flame only behind an inertization front which is formed at the injection openings (31a; 31i) through the simultaneous presence of the inerting process medium, wherein the inertization front is formed between the most downstream educt injection opening (31a; 31i) of one of the combustion educts (R; R-F, R-O) or one of the process medium-educt mixtures (MR; MRR-F; MRR-O) and the respective combustion educts (R; R-F, R-O) and/or process medium-educt mixtures (MR; MRR-F; MRR-O) converging first in a flame foot of the flame in the combustion chamber. separate supply of the combustion educts (R-F; R-O) via educt injection openings (31a, 31i) and separate supply of the inerting process medium via at least one opening, or separate supply of the combustion educts (R-F; R-O) via educt injection openings (31a, 31i), by pre-mixing at least one of the combustion educts (R-F, R-O) with the inerting process medium to form a process medium-educt mixture (MR; MRR-F; MRR-O), and separate supply of the inerting process medium via the at least one opening,