Fans are so dedicated to consuming it year-round they've coined a new South Korean proverb: "Even if I freeze to death, iced Americano!" K-Pop megastar Suga of BTS is frequently photographed with an iced Americano in hand, despite telling fans he was trying to cut back on caffeine. "The degree of cold food culture is more extreme in Korea and that may explain the popularity and prevalence of iced coffee here." K-Pop megastar Suga of BTS is frequently photographed with an iced Americano in hand, despite telling fans he was trying to cut back on caffeine. "The degree of cold food culture is more extreme in Korea and that may explain the popularity and prevalence of iced coffee here."