Introduction to the characteristics of tanning coffee is there any difference in the degree of drying between water washing and sun treatment?

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A good cup of coffee should not only take into account the variety, origin, environment, and roasting, among which the treatment that dominates the flavor and aroma of coffee is very important. Different treatments can add a unique flavor to coffee. There are three main treatments that we are familiar with, namely (1) solarization, (2) densification, and (3) washing.

It is said that tanning is the oldest method of treatment, and it is also the simplest and most simple one that does not require utensils. The first step is to screen the floating beans in the water, so that the immature coffee beans float naturally due to the buoyancy of the water, while the ones that sink are the full coffee beans that have no problem.

At the same time, simply clean the surface dirt of coffee fruit, remove leaves and miscellaneous branches, so as not to cause mildew and miscellaneous smell when exposed to the sun.

Choose a flat open space with easy access to the sun, the second step is to smooth the coffee fruit, do not overlap and pile it too densely as much as possible, otherwise it is easy to breed bacteria and cause mildew, which needs to be stirred many times a day. It usually takes about two to three weeks to increase or decrease the exposure time according to the weather conditions, and the accurate detection standard is to remove the pulp and detect that the water content of coffee beans is less than 12%.

In the process of stirring, remember to pick out fallen leaves and insects to avoid defects such as worms and beans.

The coffee beans are usually dark red at this time. In the third step, the peel and pulp of the sun-dried fruit are removed and preserved with a shell. It takes about a month or so to make the taste thicker and precipitate. in modern times, most of them use machines instead of handworks. however, there are still some backward areas and small farmers use blunt objects to knock on the peel.

It is recommended to use a machine to remove it, which can reduce the damage to the integrity of the coffee bean itself. Chen Cang remembers to choose a dry place that does not come into contact with the sun.

Advantages:

In the process of sun treatment, the amount of water required is less, the cost is relatively low, and its flavor is rich in fruit aroma and sour taste.

Disadvantages:

Must be placed in contact with the sun, for the weather environment requirements are more stringent, generally concentrated in tropical dry and wet climate countries, weather, environment uncontrollable factors, improper treatment, prone to defective beans, worm-eaten beans, rotten, mildew problems, at this time more flavor impurities.

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