The first coffee will not melt completely when thrown into the water. The maximum extraction rate of roasted coffee beans is 30% (substances that can be dissolved in water divided by the total weight of coffee). This seems to be nonsense: 1. Whether it's French pressure, Philharmonic pressure, all kinds of pressure, or espresso. The range of the best extraction rate is 18% Mui 21%. Insufficient extraction (less than 18%) indicates that the flavor of coffee is not fully soluble.
2016-01-08 About coffee take some roast okay coffee beans extract incomplete askThe working principle of the siphon pot How does it work: the main principle of Syphon is to use the ideal gas equation: PV=nRT, under a fixed volume, heat the boiling water to make the steam pressure of the boiling water, press the boiling water into the upper layer to brew the coffee through the glass tube, and then cool the lower layer in a similar vacuum state to absorb the brewed coffee from the upper layer, and filter the dregs with a filter in the middle. You can take it while looking at it.
2014-08-25 Coffee knowledge siphon pot how to use siphon potThe first section of the history of the siphon pot The history of syphon: the siphon pot (Syphon), commonly known as "glass ball" or "siphon", is a simple and easy-to-use method of coffee brewing, and it is also one of the most popular coffee brewing methods in cafes. Although the siphon kettle has the nickname of "plug wind type", it has nothing to do with the siphon principle, but uses water to heat and produce water vapor, which causes hot expansion and cold contraction.
2015-12-17 Coffee brewing way introduction siphon history reason method detailsWhen the author published the first edition of this book in 1996, roasting coffee beans at home was something that only tireless coffee addicts would do. At that time, roasting coffee beans was a very difficult thing to master, and roasters had to work hard to find a way to roast coffee beans to a moderate brown. Today, individuals still roast coffee beans at home.
2015-01-27 Coffee roasting getting started books coffee self-baking book introduction author 199When the author published the first edition of this book in 1996, roasting coffee beans at home was something that only tireless coffee addicts would do. At that time, roasting coffee beans was a very difficult thing to master, and roasters had to work hard to find a way to roast coffee beans to a moderate brown. Today, individuals still roast coffee beans at home.
2015-10-26 Coffee roasting getting started books recommendations coffee self-baking book