Reading material
What is Washed Coffee Processing Method?
The "refining method" has a major impact on the quality and flavor of coffee beans. Among these, the method that is most widely used around the world is called "washed."
In this article, we'll take a closer look at the characteristics and process of washed coffee processing, its flavor profile, and recommended ways to drink it. As an online shop specializing in coffee beans, we'll provide useful information for anyone looking to choose a coffee.
What is washed refining?
Washed processing, also known as "water washing," is a processing process in which the pulp of harvested coffee cherries is washed with water, and the beans are extracted after fermentation and drying.
This method is excellent at bringing out the coffee beans' natural clean flavor and acidity, and is often used with high-quality Arabica beans.
Main steps in washed refining
Washed refining involves the following steps:
-
Harvesting and sorting: Only ripe coffee cherries are hand-picked. This is also the stage where immature cherries are removed by "floating" them in water.
-
The outer skin and pulp of the coffee cherries are removed using a machine specially designed for pulping , leaving behind raw beans covered in a mucilage called "mucillage."
-
To remove fermentation mucilage, the beer is placed in a fermentation tank and left to ferment naturally. Fermentation time varies depending on the climate and altitude, but generally takes about 12 to 36 hours.
-
The mucilage, which has been softened by the water fermentation process, is then washed with water. This thorough cleaning process results in a clean flavor.
-
The moisture content is reduced to about 10-12% by drying in the sun or by machine. The drying process also affects the flavor, so it is carefully managed.
-
After dehusking, sorting and drying, the thin skin called parchment is removed and the beans are sorted for size and to remove any defective beans before being shipped.
Washed Coffee Characteristics and Flavor
The greatest feature of washed coffee is that it brings out a clean and delicate flavor . The sweetness and unique characteristics of the pulp are toned down, but the acidity and aroma of the beans themselves stand out, resulting in a clean, refreshing flavor without any impurities.
For example, you can expect the following flavors:
- Refreshing citrus-like acidity
- Flower-like scent and floral impression
- Light on the palate and clean aftertaste
It pairs extremely well with high-altitude, acidic beans from countries such as Ethiopia, Kenya, and Colombia, resulting in a finished product that allows you to experience the terroir (the unique characteristics of the region).
What is the difference from natural refinement?
|
Purification method |
Taste characteristics |
Suitable beans |
|
Washed |
Clean and with pronounced acidity |
Ethiopia, Kenya, etc. |
|
natural |
Fruity and sweet |
Brazil, Ethiopia, etc. |
Recommended ways to drink washed coffee
To make the most of the delicate flavor of washed beans, we recommend using methods that allow for easy extraction control, such as hand drip or Aeropress.
-
Light to medium roast is the basic style : This is the roasting level that allows you to easily taste the acidity and aroma that are the benefits of washed coffee.
-
It is better to keep the water temperature a little lower (88-92°C): too high a temperature may accentuate the acidity too much.
-
By carefully extracting each cup , it becomes easier to achieve a balanced flavor.
Points to consider when choosing washed coffee beans
When choosing washed and processed beans, look for the following:
-
Is the country of origin and altitude listed ? The higher the beans are grown, the more acidic they will be.
-
Roast level : Light or medium roast is best for washed coffee.
- Tasting notes : Citrus, floral, herbal, etc. indicate a washed taste.
summary
Washed processing is a processing method that uses water to carefully remove pulp and mucilage, bringing out the beans' original clean flavor. It is characterized by a well-balanced acidity and a clear taste, and is highly regarded in the specialty coffee world.
In other words, washed processing can be said to be a technique that brings out the individuality of coffee . Because the characteristics of each bean variety and origin are directly expressed, it is recommended for those who want to enjoy differences in taste. We encourage you to try some washed processed beans and experience the world of delicate flavors.
