The canteens (Mensa, pl. Mensen) of Freie Universitaet Berlin do not accept cash payments. Rather, you must pay with the Mensa Card. You can obtain one at the Mensa checkouts. On receiving a card you must leave a € 1.55 deposit, which will be returned to you when you give back your card. When you request your Mensa Card, make sure you bring your confirmation of your status as a visiting scholar at Freie Universitaet Berlin, since your status will be saved on the card. Students pay less than FUB staff, who in turn pay less than guests.

The Mensa Card can be topped up with cash (coins or € 5, € 10, € 20 and € 50 notes) at the machines located next to the main entrances of the canteens.

The largest Mensa of Freie Universitaet is in the Rost- und Silberlaube and offers a vegan dish and a vegetarian dish every day, alongside several meat dishes. In addition there are four soups, sandwiches, a salad bar and various desserts. Warm dishes are available from 11 am to 2:30 pm.