Responsible_Snow7109 11 points 8m ago
Hey! For future reference, this subreddit is for baristas/employees and the regular r/Starbucks is for all customers and starbucks employees.
But personal cups are okay to use! But not if you're going through a drive-thru. But my store has this plastic reusable cup thing that we use to measure drinks in because it has measurements on the side. I'm not sure if all stores have that but my store does. So if somebody would order a grande cold brew with oat milk or let's say a grande iced caramel macchiato, I could use that reusable cup with measurements on the side that we keep at my store and I can measure out the milk for the caramel iced macchiato and dump it from that reusable cup into yours and things like that. But you are definitely allowed to use a reusable cup!