Lean Coffee is a structured, agenda-less meeting format that encourages participants to build an agenda and engage in productive conversations[1][3]. The key features of a Lean Coffee meeting include:

• Participants: Everyone has a stake in keeping the meeting on point, and ownership and engagement levels are high[1].
• Agenda: The agenda is democratically selected, with attendees suggesting topics and then voting on them to create a tailored agenda[3].
• Discussion: The discussion is led by the attendees of the meeting, making it a collaborative and interactive experience[3].
• Timeboxing: Each topic is discussed within a timebox, ensuring that the meeting stays on track and focused[5].

Lean Coffee was started by two Lean coaches in Seattle in 2009 as a way to discuss Lean techniques without limiting structures[3]. It has since become a popular meeting facilitation technique that disrupts traditional meeting formats and helps make better use of time[3]. Lean Coffee meetings can be adapted to various sizes, locations, and maturity levels, but the basic structure remains roughly the same[3].

Citations: [1] https://agilecoffee.com/leancoffee/ [2] https://leancoffee.org [3] https://www.agile42.com/en/blog/lean-coffee [4] https://www.leancoffeetable.com [5] https://www.bobstanke.com/blog/lean-coffee-overview