Oliang is commonly known as Thai iced coffee. Thai coffee drink known as “oliang” is popular in Thai restaurants around the world. The name is derived from the Chinese Teochew dialect, the language spoken by the majority of Thai Chinese, indicating that oliang is from China. The word “o” means “black” and “liang” means “cold.” Oliang is basically black iced coffee. Oliang recipes vary. It is prepared from a mixture of coffee, brown sugar, and various grains and seeds like cardamom, corn, soybeans, rice, and sesame seeds.