Have you ever seen such a scene in a coffee shop, a customer sitting at the hand-washing bar with a serene expression, smiling without saying a word. After the coffee was brewed and cooled slightly, the person first sniffed it two or three times, then took a sip, and then commented: “These beans are washed.” At that moment, the world seemed to be extremely quiet, leaving only the barista nodding at the bar, and you who were full of admiration.

This scene description may be a little bit exaggerated. But in fact, among the several traditional treatment methods, the sun exposure method and the washing method are the most common, and they are also the two treatment methods that many people will eventually return to love after trying for a while. It is not difficult to distinguish between these two treatment methods. After mastering the big tricks in this article, you can do it after drinking more and trying more.

What are the methods for determining the quality of coffee beans? Observe its shape, observe its color; smell its fragrance and taste its taste.

Let me talk about the visual angle first, that is, to observe the shape and color: look at the color of raw beans and cooked beans

Green bean color: The sun drying method is to dry the picked coffee cherry fruit to reduce the moisture content. The drying period is about 20-40 days, and then the dried peel, pulp, pectin and parchment are removed by the sheller. This operation After that, the color of the green beans obtained will be yellowish.

Coffee cherries placed in a sun bed for drying.

The washing method is to remove the pectin from the pulp first, then dry it in the sun to reduce the moisture content, and finally remove the inner shell (that is, the parchment paper we often say). The color of the raw beans obtained by this series of operations will be greenish green.

After the peel and pulp pectin is removed by water washing, the coffee beans with reduced moisture content are prepared for drying.

Roasted beans: The silver skin of the coffee beans treated by the sun method is relatively more complete, and there is almost no silver skin remaining on the surface of the cooked beans. The washed coffee beans will have silver skin on the central line of the cooked beans obtained after roasting.