Any bag of basic specialty coffee beans has the information about country of origin, coffee taste, or perhaps includes coffee farms name and roaster. If it’s a single producing area, one way degassing valve thinks the information of this bag also including the altitude of producing area.
However, what’s the meaning of “altitude”? For the coffee lover, consumer, even the raw bean purchaser and coffee roaster, why we concerned about the “altitude” of coffee beans?
If you ask barista, maybe he will tell you “the high altitude means the better quality of coffee”, in fact, it's not that simple. Let us discuss that what’s the meaning of “altitude”? The altitude always connects with the better sweet taste and the complex coffee flavor; to be exact, there is a certain correlation between the both, but this is not the causality. To a great extent, the temperature of coffee bean growing environment has decided the quality of coffee.
At relatively low temperature, the coffee tree grows more slowly, and the maturity period of the coffee cherries is relatively become longer, which means that the coffee cherries have more time to develop a more complex flavor.
(At the same time, they also bring about these shortcomings: coffee tree yields are low and require more maintenance and the harvest is late. Coffee trees should not grow where the climate is too warm nor should they grow where the climate is too cold. )
Whatever the package form that the business choose, the one-way valve is a necessary component to add on, some information on coffee variety is provided.
One way valve believes that drinking coffee should be like tasting wine, first smell the aroma, and then try a small bite, that you can taste the essence of it.