What are the differences in the treatment of several common coffee beans, [sun exposure, water washing, honey treatment]?

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01. Natural solarization

This is the oldest method of treatment in existence.

This method is still used in places such as Ethiopia and Brazil.

The fruit begins the process of sun drying without treatment after picking.

It can be dried with a mechanical dryer

It can also be laid in the yard, on a drying table, on a tarp or on the ground to dry in the sun.

The drying process usually lasts about 4 weeks.

Natural sunlight can retain the fruity aroma of coffee fruit.

When you taste this kind of coffee, you will find that the coffee has a fruity aroma and a brighter taste.

After drying, people will use special machines to remove the shell of the surface layer.

This process is called drying and shelling (Dry Milling).

02. Washing method

Washing steps:

1. Select beans; 2. Stone separation; 3. Fermentation; 4. Washing; 5. Dry. Dry.

The ripe coffee fruit is picked and quickly transported to the processing console.

This console can be a small shed.

It can also be a larger processing facility.

After preliminary flushing and sorting with running water

The coffee fruit goes into the beater.

The process of separating coffee beans from fruits is carried out here.

And then flow into the fermentor.

A series of enzyme-catalyzed reactions take place in it.

It is then dried in a larger or more advanced large mechanical dryer.

In general, this method highlights the acidity and refreshing quality of coffee.

03. Semi-washing method

This method is extremely common in Brazil.

Select ripe coffee fruit

And spread them in the sun for a few days of partial drying.

Then use a small amount of water to sort and beat them.

To facilitate the beating process.

This is similar to the washing method, but does not take the fermentation step.

Beating removes all fruit layers (peel, pulp, thin skin and silver skin).

But leave clean raw coffee beans.

Then put the coffee beans in the sun or in a mechanical dryer

For complete drying.

Unfortunately, the taste of coffee tends to be flat because it is not fermented.

Therefore, growers will not use semi-washing method for ultra-high quality coffee beans.

Most raw bean purchasing companies also rarely buy coffee beans processed by semi-washing.