Yes Tea. You heard of China? India? England? Tea is the second most popular drink in the world after water. iced tea is consumed by the gallons in the South Stock shouldn't take a hit and drop for trying to grow.
Lived in North Carolina, southerners will not pay a premium for sweet tea, they can't taste the tea for all the sugar. And in those tea countries, most will not pay a premium for tea whereas they fall all over themselves for expensive coffees. Running a tea house is like running a vegan restaurant. Basically, the margins off tea will not justify the overhead in most of the locations SBUX has.