The biomethane sector is rapidly expanding due to the compelling advantages of renewable biomethane, which closely resembles non-renewable natural gas. In this work, we present a novel study on trickling bed reactors (TBR) under mesophilic conditions, demonstrating their robustness in producing biomethane with a content of 96% in methane (CH4) at low gas retention times of 1 h. Our research brings a fresh perspective to the field of biomethane production.