According to the search results, Starbucks has celebrated National Coffee Day in different ways in the past. Here are some examples:

• In 2021, Starbucks celebrated its 50th anniversary on National Coffee Day by inviting customers to bring in a clean, empty, reusable cup into participating cafe locations in the U.S. to receive a free cup of Pike Place Roast brewed coffee.

• In 2023, Starbucks offered free tastings of their coffee at select locations only.

• In 2023, Starbucks also released six new city-inspired Starbucks Reserve coffee microblends, each roasted in the cities: Seattle, Chicago, New York, Milan, Tokyo, and Shanghai. They were available at those locations ($28-$32 per bag) .

Its worth noting that Starbucks is not the only coffee chain that celebrates National Coffee Day with deals and promotions. Other coffee spots, such as Dunkin, Krispy Kreme, and Tim Hortons, also offer discounts and freebies on this day.