Dunkin’ offering rewards members free coffee for National Coffee Day

Coffee lovers, rejoice!

In celebration of National Coffee Day, Dunkin’ rewards members can enjoy a free medium hot or iced coffee with a purchase on Friday, Sept. 29.

The offer excludes espresso beverages, cold brew, nitro cold brew, and gift card purchases.

To become a Dunkin’ reward member, sign up on the Dunkin’ app or website.