How long should I wait after breaking my fast to pray?

In the month of Ramadan that last went by, I was at my local mosque for iftar. When it was time to break our fast, we did so but I was encouraged to keep on eating for at least ten minutes before we went to pray. Is it normal to wait so long after the adhan for maghrib to start praying? Normally, when I've prayed in mosques we wait a minimal time between the adhan and the prayer, and at home I pray directly after breaking my fast. Is it normal to wait so long after breaking ones fast to pray maghrib?