In this web content, the author explains their journey of discovering their love for espresso and their quest to create their own DIY espresso machine. They discuss their experimentation with different coffee brewing methods and their decision to harness compressed CO2 as a way to generate the high pressure needed for espresso extraction. The author emphasizes their frugality and their use of 3D printing to create the necessary parts. They document their successes and challenges throughout the process and express their intent to continue improving their DIY machine. The author also addresses concerns about the taste and temperature of the espresso produced using their method.
https://www.fourbardesign.com/2020/10/diy-espresso.html