Does the sun treatment of coffee affect the quality and flavor of coffee beans?

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Tanning is the oldest method of coffee treatment. according to literature, Arabs began to use tanning to treat coffee fruits as early as 1000 years ago in the 11th century. Coffee was called "Arab wine" when it was introduced into the West from the Arab world because of its refreshing effect.

Specific steps for solarization:

1. Remove floating beans

The coffee fruit picked from the coffee field must not be mistaken. It must be sent to the processing plant on the same day, and the coffee beans must be poured into a large tank. The immature inferior beans will float to the surface, and the mature 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 the floating beans will be completed.

two。 Insolation

Spread the coffee fruit evenly in the exposure field and turn it several times a day. This process usually lasts about 3 weeks, depending on the local climate.

3. Observe

After the end of the sun, the outer layer of the coffee seed has dried and hardened, and the sun drying step is completed when the water content inside the coffee bean drops to 10 Mel-14%.

4. Remove the shell

At this time, the shell is removed by the sheller, that is, the treatment step of the solarization method is completed.

This is the whole process of tanning, and then let's talk about the effect of sunbathing on the quality of coffee beans:

Advantages:

Tanning requires no water except for the steps of removing floating beans, and a bucket of water can be reused with low cost, so it is widely used in areas where water resources are not abundant.

Disadvantages:

1. Sunburn method because the coffee beans must be placed outside, so there are often a lot of dead branches and leaves and other impurities mixed with it.

two。 Because it is the use of the sun, the degree of dryness of coffee beans is not easy to control, resulting in coffee fruit "overdrying" situation, internal coffee beans are damaged as a result.

3. In the process of the sun, because the pulp has not been removed, it is often moldy and rotten.

Flavor:

Because the sun drying method is to let the coffee fruit dry naturally, the coffee beans can ripen naturally inside the fruit and will not be disturbed by the external environment, so the coffee beans treated by the sun method will enlarge their own flavor, mellow and strong flavor. and give off a sweet taste.

Fuji 3.5 V60 filter cup 90 ℃ water temperature 1:15, total time two minutes.