Why are fast food chains offering coffee deals? Fast food chains are focusing on breakfast and snack times to increase revenue. If fast food chains can get customers in the door or at a drive-thru window with a cheap cup of good coffee they can also sell a variety of breakfast and snack items. The key word is good coffee! Chains like McDonald’s, Wendy’s, Burger King and others have invested time and resources to improve their coffee offerings and promote better tasting and specialty coffee beverages.