The exhaust valve on the coffee bean bag is standard. Why can't you smell the coffee from the valve?
The small hole in the coffee bean bag is an one-way exhaust valve, because after baking coffee beans, it will release carbon dioxide, if you do not install an one-way exhaust valve, it will cause an inflated bag, or even cause an explosion bag, the one-way exhaust valve oxygen can not enter the inner bag, and excess gas can be discharged through it.
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Professional coffee roasting | Common defects in coffee roasting
Professional barista communication Please follow the coffee workshop (Wechat official account cafe_style) see this Coffee Roasting Defects Pictorial in home-barista, see Hunting Xin Xi, and keep it. Although you have to drink the coffee, you can find out a lot of problems by looking at it, and there is no conflict in logic. Derived from Home Roasting Competit
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Channel effect? On the Channel effect in Coffee extraction
Today, I'm going to talk about the channel effect. when I first learned about the channel effect, it was not long before I made coffee, and the coffee powder could not be well distributed in the powder bowl. My teacher often told me that your coffee has a channel. At that time, I was just trying to figure out some superficial things according to the gourd. What's the difference?
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