That time is better spent over lunch explicitly relaxing rather than in a meeting which people trade off against other things. 3 minutes is fine and re-enforce

That time is better spent over lunch explicitly relaxing rather than in a meeting which people trade off against other things. 3 minutes is fine and re-enforces a relationship. but when it rolls on into 15-20 for a regular meeting among folks who already know each other, then it sets people up for not working efficiently and thereby not getting home on time.