Which is better to wash coffee beans or to treat them in the sun | analyze the different characteristics of washed beans and sun-dried beans.

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

Where the flavor of coffee comes from is the unique flavor given by coffee treatment. As a means of giving coffee flavor, coffee treatment is a means with value-added function, and it can be dealt with according to different situations. Sun treatment is used in areas where there is no shortage of water, which is the oldest treatment; water washing is used if there is no shortage of water. Do you know the difference between the two treatments?

I. Solar treatment

Tanning is the cheapest, simplest and most traditional way to process coffee beans. The main reason is that drying and tanning is the cheapest, simplest and most traditional method of processing coffee beans. 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 so that it is naturally dry and will not be disturbed by the external environment. After that, the dried pulp, endocarp and silver peel are removed by a sheller.

Steps:

1. Remove floating beans

Pour the coffee beans into a large tank, the underdeveloped inferior beans will surface, and the ripe and full fruits will sink to the bottom of the water. At this time, the floating beans on the surface will be removed, that is, the steps of removing floating beans will be completed.

two。 In the sun

Spread the coffee fruit evenly in the exposure field and turn it several times a day. This process usually lasts about 2-3 weeks, depending on the local climate, when the water content inside the coffee beans drops to 10-14%, the sun drying step is completed.

3. Remove the shell

After the end of the sun, the outer layer of the coffee seed has been dry and hard, at this time, the shell is removed by the sheller, that is, the treatment step of the sun method is completed.

Taste: the coffee beans treated by the sun will enlarge their own flavor, mellow, strong flavor, and will give off a sweet taste.

2. Water cleaning method

Washing with water is the most widely used treatment method at present, and the biggest difference from the solarization method is the use of fermentation to remove the pectin layer.

Steps:

1. Remove floating beans

In the same way as in the sun, the coffee beans are poured into a large tank, the poorly developed beans will float to the surface, and the ripe and full fruits will sink to the bottom of the water.

two。 Remove the pulp

Through the pulp screening machine, the exocarp and pulp of coffee fruit are removed. It leaves pectin, endocarp and silver peel.

3. Equal fermentation

The purpose of this step is to use biological treatment to remove pectin. Put the coffee fruit treated by the pulp screening machine into the fermentation tank for 16 hours and 36 hours, the fermentation bacteria will dissolve the pectin.

4. Wash with water

After completing the fermentation and removing the pectin, the coffee beans will be cleaned again because the fermentation bacteria and impurities will remain on the coffee beans. In order to clean it, this step consumes a lot of water.

5. Drying and peeling

The coffee fruit is usually dried by machine or sun drying to reduce the moisture content to 1014%. Then use the sheller to remove the remaining endocarp and silver peel, and the processing can be completed.

Palate: usually, this method is fermented, so coffee beans usually have bright sour and fruity aromas.

After comparison, it is found that the sun treatment is characterized by fermented wine flavor and rich taste, while the water washing treatment is characterized by flower and fruit aroma and refreshing taste, and the flavor and taste given by the two treatments are completely different. You can choose different flavors of coffee according to your preferences.

END