Why Sun-dried Coffee Beans Sweeten Than Washed

Why do sun-dried coffee beans taste sweeter than washed coffee beans?
If you love coffee, you know that coffee cherries need to be processed to remove the coffee pulp and the inner and outer peels before you can get coffee beans. The processing method (for example: sun-dried coffee beans) will affect the taste of the coffee beans because some chemicals after the pulp fermentation will run into the beans, and different environments will affect the state of the coffee beans.

The most well-known processing methods are sun-dried processing and washed processing:
The washed processing method has stable quality, clean taste, and is slightly sour;
while the sun-dried processing method is sweet and has a stronger fruity flavor.

Why are sun-dried coffee beans sweeter and more fruity?
After analysis, sun-dried coffee beans do have more sucrose and fructose than washed coffee beans. However, this is not because of the sun exposure and fermentation that produce more sugar, but because the washing process reduces the sugar content of the coffee beans!

Why is this? Let's start with the operation of plants. The task of seeds and beans is to find a suitable environment and then germinate and grow another plant.

When the coffee beans are soaked in water during the washing process, they will mistakenly think that they have come to an environment suitable for growth, so they will start to germinate, causing some chemical changes in the beans to consume sugar. So even if they don’t really germinate, they still consume sugar.

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