The classification of coffee beans introduces the cup size of coffee shops.

Countries that produce coffee beans

Brazil is the largest exporter of coffee beans in the world, followed by Colombia. These two Central and South American countries account for more than half of the world's coffee production, and the quality is stable. Vietnam has developed rapidly in recent years and has become the second largest coffee exporter in the world. Other countries and producing areas, such as Indonesia, Ethiopia, Guatemala, Jamaica and Kenya, are also famous coffee producers.

It should be mentioned that China's Yunnan and Hainan also produce coffee beans, but due to the innate conditions of soil and climate, coupled with technical and management factors, China's coffee beans have been "neglected". However, in late 2008, Starbucks first launched the Starbucks Fengwu Xiangyun, which contains Yunnan coffee beans, to celebrate the 10th anniversary of Starbucks' entry into the Chinese market. Although the coffee beans are only mixed with 10 per cent of Yunnan coffee beans, it is indeed a major and meaningful thing for China's coffee industry to be on the list of the world's largest coffee manufacturers and retailers. Coffee beans around the world are usually divided into two types, Arabica and Robusta.

Arabica, also known as high-altitude coffee or small fruit coffee, which grows at high altitudes (more than 1500 meters) is the most traditional variety of Arabica coffee. Originally from East Africa, coffee was monopolized by the Arab world for a long time before the 15th century, so it was called "Arabian coffee" by Europeans. Arabica coffee beans account for about 75% of the world's coffee bean production and are grown in all regions. This kind of coffee is not resistant to diseases and insect pests, and its growth conditions are relatively strict, but its taste and caffeine content are better than those of Robert's, and its price is higher than that of Robert's. The world's more famous coffee brands purchase Arabica beans as the main source of coffee beans.

Arabica was the only kind of coffee beans, then in the 19th century, there was a large area of diseases and insect pests, coffee growers began to look for other varieties of coffee resistant to diseases and insect pests, so Rob's special was discovered and began to be planted artificially. Robert's special growth in low-altitude areas, characterized by resistance to diseases and insect pests, cold, drought resistance, a word to describe, "thick", but the taste is relatively bitter, caffeine content is also high, twice as high as Arabica, so the price is also on the low side. Robert's is the main buyer for most instant coffee companies.