The Kosher Information Bureau continues to recommend the following at all outlets of Starbucks…
All cold unflavored coffee or tea. Flavoring comes in a bottle that is displayed. One should check the bottle for reliable certification, usually an O/U or O/K.
Starbucks in a Kiosk, supermarket etc. is fine for the above as well as hot drinks.
Any packaged baked goods (cookies etc.) pre-packaged, with a reliable Kosher certification
We suggest looking at www.kosherstarbucks.com for further information on these matters.