The art of brewing coffeeChanneling in espresso: what it is, why it ruins extraction, and how to avoid itWhen I started taking my first steps in the world of coffee I was obviously unaware of the existence of channeling. I only began to understand it when I decided to buy a bottomless portafilter, the kind that in YouTube videos they call “bottomless portafilter” (an example here). Channeling is insidious because it’s invisible tobottomless portafilter, channeling, over-extracted coffee, under-extracted coffeeChanneling in espresso: what it is, why it ruins extraction, and how to avoid itRead Post »
