Back by dope demand: a leaner meaner Grolsch Koel Service for those long awaited hot summer days. The Koel Hotline, First Aid for lukewarm beer. After a ‘beer emergency’-phone call to the hotline, these small mopeds with a fridge for a sidecar will come to your rescue and exchange your lukewarm brewskies for a cool one from Grolsch. The Koel Hotline mopeds will be crossing the country throughout the summer and their location can be monitored through with an Iphone app.