What is the process of processing coffee fruit into coffee beans
1. Choose beans:
Put the harvested fruit in a water tank and soak for about 24 hours. At this time, ripe fruit will sink, while immature and overripe fruit will float up and can be removed.
2. Remove the pulp:
Use a machine to remove the peel and pulp, leaving only coffee beans wrapped in endocarp. At this time, there is a layer of mucous membrane on the outside of the beans, and the process of washing is to wash this layer of mucous membrane.
3, hair alcohol:
The adhesion of the mucous membrane is very strong and is not easy to remove. It must be placed in the slot for about 18-36 hours to make it alcohol and decompose the mucous membrane. There are two methods of fermentation, namely wet hair alcohol and dry hair alcohol, as the name implies, the former adds water, the latter does not add water. In the process of producing alcohol, the seeds and internal pulp will produce special changes, which is one of the steps that most affect the flavor of coffee. Some farms add hot water or alkanolins to speed up the production of alcohol, which has a negative impact on quality and is not popular with selected coffee lovers.
4, washing:
Farms that use the washing method must build washing ponds and be able to introduce an endless supply of running water. During the treatment, the finished beans are put into the pool and passed back and forth, using the friction of beans and the power of running water to wash the coffee beans until smooth and clean.
5, dry:
After washing, at this time, the coffee beans are still wrapped in the pericarp with a moisture content of 50%. They must be dried to reduce the moisture content to 12%, otherwise they will continue to be mellow, moldy and rotten. The better treatment is to use sunlight to dry, although it will take 1-3 weeks, but the flavor is very good and very popular. In addition, machine drying is used in some places, which greatly shortens the processing time and makes the flavor not as good as that of sun-dried coffee.
6, shelling:
The dried beans can be stored in a warehouse or handed over to the factory for shelling to remove endocarp and silver film.
7, selection and grading:
Like tanning hair, washed coffee has a process of picking and grading, which is used to remove defective beans and ensure better quality, which is then handed over to exporters to sell around the world.
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How to distinguish the defective beans in coffee beans
Caused by poor dryness or abnormal hybridization; the bean breaks from the central line and the inside is turned out like a shell. Shell beans can cause uneven baking and are easy to catch fire during deep baking. The moth invades and lays eggs when the coffee fruit is ripe and red, and the larvae eat the coffee fruit and grow, leaving traces of moth on the surface of the beans. Moth-eaten beans can cause cloudy coffee liquid and sometimes produce.
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How should coffee beans be roasted
One or two days. Coffee beans fried with hand filter roasting tools can be stored at room temperature if they are to be used up within a week; if not, the best way to preserve them is to seal them in the refrigerator. Each time you use it, just take out the necessary amount and grind it into pieces. It takes about two weeks to maintain the inherent flavor of coffee beans. With a handle
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