Timing: Aug 3, 10, and 17
How to claim: Starting on August 3, Dunkin’ Perks members can get a free medium coffee — hot or iced — for free. In order to redeem the offer, members must buy any food item to claim the deal. Those who are not members can sign up through the Dunkin’ app. The coffee chain is also bringing back Free Donut Fridays, when members can get a free classic donut when they purchase a drink.