Keep all comments in one place. Exchanging emails to share feedback may result in clogged inboxes and miscommunication (for example, if you forget to cc a coworker or accidentally delete an email.) Instead, use a shared document or a platform that all team members can access at any time. And ask team members to write down their feedback right after the interviews, when the conversation is still fresh in their minds.
Use interview scorecards. Share lists of interview questions per stage so that everyone on the hiring team knows what other interviewers have covered. Each interviewer should ask different questions so they can learn something new about the candidate at each stage. This helps make the final decision more informed and also makes for good candidate experience