Ethiopia is one of the most important countries in terms of coffee cultivation. It is in fact the place of origin of this delicious raw material and one of the few places in the world where coffee grows wild. For this reason, over time many varieties have developed and mixed together and now we can find a vastness of coffee with very different characteristics in a relatively small space.
Since the first lever machines were produced, the market has progressively shifted to pump machines. Only a few manufacturers kept producing professional levers like Izzo, San Marco, La Pavoni, Victoria Arduino and a few others. Levers were then considered by many professional roasters and bars just as vintage or even old-fashioned objects, surely not cutting-edge machines used for high end and 3rd wave coffee bars; however, in 2017 things suddenly changed.
In the history of coffee, many important innovations have been able to improve this sector, solve problems or simply alleviate them. Among all these inventions, some have even managed to revolutionise the beloved black drink. These latter are very few and can probably even be counted on the fingers of one hand, and you don't have to be audacious to say that the introduction of the lever was one of them. It has allowed us to know the espresso as we know it today and has given rise to an immensity of new possibilities.
The Water Calculator from The Lever has been developed to create the ideal coffee water with customisable parameters starting from your own tap water. The Controlled Dilution System allows you to calculate in what percentage to dilute the starting water instead of remineralising distilled water from zero as other similar calculators do. This guide will explain all the details on how to use it.