The mode of production of coffee and the treatment of raw beans introduce what is mixed coffee.

Mode of production editing

Ruwak coffee beans [the most famous coffee beans in history come from the remains of coffee beans in the feces of cats and muskcats after eating coffee beans]

Muscat Coffee (Kopi Luwak), Kopi (Indonesian, coffee), Luwak refers to an arboreal wild animal commonly known as "civet" by Indonesians, which looks similar to masked palm civet in southern China. It is found in Sumatra, Zawa, and Sulvis and is part of the 13677 islands of Indonesia. Luwak is an omnivore. They are eccentric, have a keen sense of smell, have thick hair and long tail, like to walk at night, and live in tropical rain forests, subtropical evergreen broad-leaved forests, mountain thickets or hills, mountains and grasses below 2000 meters above sea level. Their foods include small beasts, birds, amphibians and reptiles, crustaceans, fruits and seeds of insects and plants, and so on.

The Indonesian island of Sumatra produces excellent coffee beans, which were found in masked palm civet's feces in the bushes.

Lianhe Zaobao reported on the 6th that there is a coffee garden on a mountain 100 kilometers southeast of Medan City on Sumatra Island. Every morning, operators have to go to the coffee garden to look for masked palm civet's feces and pick out coffee beans. They think masked palm civet is a natural machine for removing the pulp of coffee.

Masked palm civet specializes in eating the most mature coffee fruit, where the enzymes in the body decompose the pulp of the coffee fruit and then discharge the coffee beans. Workers collect the coffee beans, wash their feces and make a drink that is irresistible to coffee lovers.

Makoni, an assistant professor in the Department of Food Science at the University of Guelph in Canada, explained that after coffee beans enter masked palm civet's digestive system, they break down proteins into small molecules of enzymes that interact with coffee beans. When coffee beans are roasted, these small molecular weight proteins react with carbohydrates or sugars of coffee beans, giving "Ruwak Coffee" its famous natural chocolate flavor.

Production method editing

Coffee beans

Coffee beans

After harvest, peel, pulp, racing peel and silver peel should be removed before shipping and listing. There are two kinds of methods: drying (also known as natural or non-washing) and washing.

Dry type

The method is relatively simple. First of all, spread the freshly harvested fruit on the sun field for a week or two until the fruit crackles and dries naturally. After that, the dried pulp, endocarp and silver peel are removed by a sheller.

Coffee beans refined in this way are slightly sour and slightly bitter. Almost all coffee beans produced in Brazil, Ethiopia, Yemen and other places are obtained in this way. The disadvantage of this method is that it is easily affected by the weather and is easy to be mixed with defective beans and other impurities. Therefore, it must be carefully screened.

Washing type

The fruit that is about to be harvested is put into a flowing trough. After the floating fruit is removed, the skin and flesh are removed by a pulp remover. Then put it in the sink to remove the emerging pulp. After that, move into the fermentation tank, soak for half a day to a day, and then dissolve the gum on the surface of the fermented coffee beans.

After washing with water, drying it for a few days, drying it with a machine, and finally using a sheller to remove the endocarp to become a commercial raw coffee bean. In this way, it will be more beautiful in color and less impurity than dried coffee beans. Colombia, Mexico, Guatemala and other countries use this method for about 70% of their production.

Mode comparison

The coffee beans are treated after harvest, otherwise they will begin to ferment, making the coffee beans smell bad. The main treatment methods are "drying" and "washing", these two methods will cause different flavors. Dry beans have complete natural mellow taste, gentle aroma and more gum, while water washing has good mellow taste, high aroma and lively sour taste, which is also the source of sweetness in espresso.