AbstractFollowing a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy ofLentilactobacillus buchneriDSM 32650 as a technological feed additive (functional group: silage additive) for all animal species. The additive is intended to improve the production of silage at a proposed application rate of 1 × 108colony‐forming units (CFU)/kg fresh material. The bacterial speciesL. buchneriis considered by the European Food Safety Authority to be suitable for the qualified presumption of safety (QPS) approach. As the identity of the strain has been established and no antimicrobial resistance determinants of concern were detected, the use of the strain as a silage additive is considered safe for the target species, consumers and the environment. In the absence of data, the FEEDAP Panel cannot conclude on the potential of the additive to be a skin/eye irritant or a skin sensitiser. Given the proteinaceous nature of the active agent, the additive should be considered a respiratory sensitiser. The FEEDAP Panel concluded thatLentilactobacillus buchneriDSM 32650 at a minimum concentration of 1 × 108CFU/kg fresh material may extend the aerobic stability of silage from easy and moderately difficult to ensile fresh material with a dry matter content ranging from 28% to 45%.