Starbucks needs to buy milk, but there is free milk and sugar for American coffee on the bar, which can be poured for free, just like the one bought.
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Starbucks' retail products include more than 30 kinds of world-class coffee beans, hand-made espresso and various coffee hot and cold drinks, fresh and delicious cakes, as well as various coffee machines, coffee cups and other commodities. Starbucks has nearly 2 1300 branches all over North America, South America, Europe, the Middle East and the Pacific.
On April 2 1 2020, Starbucks said that it would launch artificial meat products (a new plant-based lunch) in China, and Beyond Meat, the first artificial meat company in the United States, would produce such products.
Baidu encyclopedia-Starbucks
? Starbucks official website-coffee