The invention relates to a method for producing a rotor cup (10) for an open-end spinning rotor (1), in which a front edge (16) of the rotor cup (10) with separating structures (17) for breaking and preparing a yarn end (5a) for piecing is provided, wherein the separating structures (17) by a non-mechanical manufacturing method, in particular by a non-mechanical removal method, are applied. Furthermore, the invention relates to a rotor cup (10) for an open-end spinning rotor (1) having an inner rotor wall (12) and an outer rotor wall (13), a rotor bottom (14) and an end side edge (16) opposite the rotor bottom (14) ) provided with separating structures (17) for breaking and preparing a yarn end (5a) for piecing, said separating structures (17) having a surface with a micro-profile (20).
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