Brazil.
Brazil is the world's largest producer of coffee, accounting for around 40% of the global coffee supply. The country's warm, humid climate and rich soil make it an ideal environment for growing coffee beans, and the majority of Brazil's coffee is grown in the southeastern states of Minas Gerais, Sao Paulo, and Parana. The most common variety of coffee grown in Brazil is Arabica, which is known for its mild flavor and low acidity. The Brazilian coffee industry has a rich history, dating back to the 18th century, and it remains a vital part of the country's economy today.