In this post I discuss the effects of coffee varieties, origin and processing on average extraction yield and brew time.
In this post, I discuss the physics of kettle stream and how we can maximize extraction evenness by changing pour rate and height.
In this post, I discuss issues and possible avenues for grinding finer for filter coffee
This post describes some available tools for measuring water properties relevant to coffee and presents ways and a web tool to hack aquarium kits for a better precision.
In this post, I explore the details of physical phenomena that can cause fines to migrate and clog coffee filters.
In this post I discuss recent developments in my efforts to stabilize my kettle flow rate.
This is a short post just to let you know that my blog Coffee Ad Astra was nominated for a 2019 Sprudgie Award for best coffee writing ! I am super excited about it ! 😊 An online voting poll was just started by Sprudge to determine the winner, any help either from voting or spreading the …
In this post, I show that surface hardness might vary more than mass density across different green coffees.
In this post I describe what causes astringency, and talk about ideas how we could potentially measure it or remove it post brewing.
In this post I discuss the variables that affect brew time in detail