How to use the app The app has three calculators built in: the original Cowculator, a Cup Size Calculator, and the ‘Reverse Cowculator’. You can switch between calculators by...
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The Espresso Machine
The Espresso Machine BH Unlimited Update, June 5th, 2021. This week we have been on a mission to find out when espresso machines went horizontal. The earliest evidence we’ve...
You Can Leave Your Lid Off
While writing our course on Immersion Brewing last year, we noticed a strange phenomenon: when brewing coffee in a French Press, leaving the lid off during the brew seemed to...
Ten Green Bottles
Ten Green Bottles
The milkman, once an endangered species, is making a comeback. Deliveries of milk in reusable glass bottles have seen a surge in recent years in the UK (BBC 2018), and the...
The Espresso Machine
The Water Calculator
Immersion — Final Assessment
TDT 2.12 Recap and Glossary
Recap The farm is one of the biggest sources of greenhouse gas emissions in the life cycle of coffee, mainly because of fertiliser use. However, estimates of the environmental...
TDT 2.10 Styles of Consumption
Alongside the fertiliser used in growing coffee, the energy used in brewing is the other major contributor to the carbon emissions of a cup of black coffee. The Tchibo study...
Baseline Tests
Low Fines Espresso
Low Fines Espresso BH Unlimited Update, Mar. 13th, 2021. We’ve published a new white paper from award winning Astrophysicist Jonathan Gagne , where he goes into epic detail...
Raghweh
Putting the Cart Before the Horse
Putting the Cart Before the Horse BH Unlimited Update, Feb. 12th, 2021. It feels counter intuitive to add the water to a brewer, before adding the coffee grinds. It might be...
IM 6.01 The History of the Cezve
The cezve (pronounced jez-veh) is often described as the world’s oldest coffee-brewing method. Its design and use have remained virtually unchanged for centuries, right down to...
All the Single Baskets
In an ideal world, a single espresso basket would allow you to make half the amount of coffee as a double, and achieve exactly the same flavour as a double, all without changing...
Steep-and-Release
IM 4.06 Syphon Coffee
The syphon, or vacuum pot, is probably the most visually striking of all the manual brewing methods. It consists of two delicate glass vessels suspended over a flame. The water...