Mantenin in Sumatra, Indonesia, with full grains and thick taste.

Manning coffee is grown at an altitude of 750 to 1500 meters above sea level and belongs to the rare Arabica coffee beans in Indonesia. The appearance of Mantenin coffee beans is arguably the ugliest, but coffee fans say that the worse the Sumatran coffee beans are, the better, mellow and slippery they are. Mantenin coffee beans have large particles and hard beans, which are prone to defects in the process of planting. After harvest, they are usually strictly selected by hand. If the control process is not strict enough, it is easy to cause a mixture of good and bad quality. Manning coffee is treated differently, usually by putting the peel and flesh of dried coffee into hot water and removing them after washing, which has the advantage of making the shape of raw coffee beans smoother and more uniform. Mantenin coffee beans are said to be the most full-grained coffee beans in the world, which may be the reason for their rich natural aroma.

Mantenin taste thick and strong, is the "Caesar" of coffee, when tasting Mantenin, you can feel obvious lubrication on the tip of the tongue, it also has a low acidity, but this acidity can also be obviously tasted. Leaping micro-acid mixed with the most intense aroma, so that you can easily feel the lively factor in the mild fragrance. In addition, the coffee has a faint earthy aroma, and some people describe it as "the aromatic taste of herbs: full-grained, thick and strong."

In Indonesia, coffee is not usually labeled as "Indonesia", but is preceded by the name of the island that produces it. Sumatran Mantenin, Java and Sumatra Ancora are usually regarded as one of the best coffees in the world, especially Manning, which is more popular. Coffee gourmets around the world once commented: "Sumatra Manning Coffee is the best coffee in the world."

The history of coffee cultivation in Sumatra began in the 18th century and was first introduced to the northern part of Sumatra, which has Lake dopa, Sumatra's largest freshwater lake, which is still the main producer of Sumatran coffee. Since coffee produced in Sumatra does not vary greatly in taste due to different producing areas, and even coffee from different producing areas, their harvest and processing processes are very similar, therefore, Sumatra is not named as a variety of coffee according to the producing area. In fact, most of the coffee beans produced in Sumatra are sold under the product name Mantenin, which has a very ethnic origin.