After the beginning of the COVID-19 pandemic in 2020, digital teaching had to be implemented by most universities at short notice and widely replaced classroom teaching. As a consequence, digital teaching further reduced direct social interaction for students. One year after the introduction of digital teaching formats at our university medical center (department of psychiatry and psychotherapy), teaching evaluation of students from summer semesters 2020 and 2021 (SS20, SS21) were compared. The main objective of this study was to objectify whether students evaluate digital teaching less favorably after one year of its implementation. Ratings of 311 medical students on (1) knowledge gain, (2) teaching contents and (3) subjective advantages of digital teaching were analyzed for the two separate cohorts SS20 (n = 175) and SS21 (n = 136). Students also rated their pandemic-related stress level, and if learning progress had been reduced by the pandemic in general. Significant knowledge gain was achieved for all included domains in psychiatry (all p < .001), and did not differ between SS20/SS21. Teaching contents in SS21 were rated worse in six out of eight domains compared to SS20 (p < .001 to .05). Also, subjective advantages of digital teaching vanished in most domains comparing the cohorts of SS21 and SS20 (p < .001 to .05). No differences were found for pandemic-related stress level and subjective learning progress. Limitations include the post-hoc design, possible bias from individual exam grades, and sampling bias. The present study showed that knowledge gain can be considered to be stable one year after the pandemic-related implementation of digital teaching. However, sustainability of this teaching format should be monitored critically: The subject of psychiatry and psychotherapy thrives on direct communication, which can be compromised when using digital formats only. In this light, implementation of more interactive formats in digital teaching is discussed.