Double washing coffee boutique hand-made coffee what does double washing mean

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Double washing

First washing and fermentation

After the coffee cherry harvest, the beans will first be picked by the specific gravity of the water flow; the principle is that the coffee fruit itself is screened by the difference in density and quality; the coffee beans with high density (heavy weight) will sink into the water, while the coffee beans with low density will float. The coffee fruits with high mature quality have high density, so they are screened out for further treatment.

After the high-quality and ripe fruits are selected, the peel is removed, washed and soaked, and the pectin mucus attached to the outer layer of raw beans is fermented. Pectin has natural sugars and alcohols, which play an important role in the development of sweetness, acidity and overall flavor of coffee.

The fermentation time is as long as 24 hours, and after fermentation, 80% of the pectin is removed, leaving only the flavor in the coffee beans.

The second washing and fermentation

Then enter the second washing fermentation process. After the coffee beans in the previous stage are cleaned, they are soaked in water again for 24 hours. This process increases proteins and amino acids, and the acidity of coffee beans creates complex and delicate layers of taste.

Finally, remove all the remaining pectin and move the coffee beans to a high scaffolding for sun drying, depending on the weather, which usually takes about 10 days.