Starbuck company is established in 77 countries.
Interesting since it was founded in Seattle, Washington in 1971.
This coffee shop serves hot and cold drinks.
Do you have a favorite? Have you heard of "second wave coffee"
I really like iced tea. No, I haven't heard of «second wavw coffee». What is it ?
second wave coffee is what starbucks says they are. It means they are better then everyone else in taste 
I wonder what is the secret behind their recipe.
I think it's that all the coffee that make is based on lighter roast's. Gives it a better taste. 
I heard that lighter roast coffee has more caffeine. I wonder it it's true.
Caffeine
Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class. It is the world's most widely consumed psychoactive drug. Unlike many other psychoactive substances, it is legal and unregulated in nearly all parts of the world. There are several known mechanisms of action to explain the effects of caffeine. The most prominent is that it reversibly blocks the action of adenosine on its receptor and consequently prevents the onset of drowsiness induced by adenosine. Caffeine also stimulates certain portions of the autonomic nervous system.
Caffeine
Starbucks
Starbucks Corporation is an American coffee company and coffeehouse chain. Starbucks was founded in Seattle, Washington in 1971. As of early 2019, the company operates over 30,000 locations worldwide.
Starbucks is considered the main representative of "second wave coffee", initially distinguishing itself from other coffee-serving venues in the US by taste, quality, and customer experience while popularizing darkly roasted coffee. Since the 2000s, third wave coffee makers have targeted quality-minded coffee drinkers with hand-made coffee based on lighter roasts