Cold coffee is booming in the U.S.In 2023, Americans spent about $17.7 billion on out-of-home cold coffee including iced coffee, cold brew and frozen coffee drinks. That is more than double the $8.5 billion consumers spent in 2016, according to food service research firm Technomic. Giants like Starbucks have played a major role in iced drinks taking share from more traditional hot coffee."The way it usually works in the U.S. is that coffee trends start at the coffee shop and above all, at the big chains lik ...