Are parchment coffee beans wrapped in exocarp?

Are parchment coffee beans wrapped in exocarp?

How to tell whether coffee beans are washed or insolated?

1. Water content

The water content of coffee with washed beans is higher, while that of sun-dried beans is relatively low. General coffee beans show different colors due to their different water content, with higher water content being green or cyan, and less brown or near white. Therefore, the washed coffee beans show a darker green.

2. Whether the silver skin is in good condition

In the process of processing, the washing method usually removes the silver skin from the coffee beans, showing a special luster, but the sun rule only takes off the coffee shell, and the silver skin is still intact.

3. Baking degree

Different processing methods use different degrees of baking, the effect is also different. In general, if the washed beans have not been deeply baked, the residual silver skin of the central line still exists. Although the silver skin of the sun-dried beans was intact during processing, they disappeared after baking. The deeper the roasting, the darker the coffee beans will be.

The process is as follows: → storage tank (removal of impurities and impurities) → pulp removal machine (removal of pulp and impurities) → washing pool (selection of light and hard beans) → sun field (or dryer) → sheller (removal of endocarp) → grading (electronic bean selector or hand selection, sieve, etc.)

Semi-washing, also known as "honey treatment", is a compromise between drying and washing, eliminating the need to ferment coffee fruits. First remove the peel and pulp of coffee, and then, according to the need, decide whether to use a pectin removal machine (desmucilaginador) to remove pectin, or how much pectin to remove, and finally reduce the water content of raw beans to 10% or 12% by sun drying or machine drying or a combination of both.

The fermented coffee with skin needs to be cleaned immediately after the completion of the fermentation process to terminate the process. However, after removing the mucus and before cleaning, it may be necessary to soak the coffee with skin in clean water for 12 to 24 hours to reduce the bitterness in the coffee drink.

The washing method is also called wet treatment: after the outer pulp of the coffee fruit is removed by the pulp separator within 12 hours after the coffee is picked, the coffee beans are soaked in a large cement tank filled with water to separate the fruit. The coffee beans are then pasted in the fermentation box for about 12-36 hours, containing 15% water after fermentation, and the fermented coffee beans are washed clean with clean water. The coffee beans are dried in a dryer or dried in the sun, and the coffee beans are called "parchment coffee beans", waiting for export.