https://www.openlearning.com/u..../kristiansenbarrett-
Buying an Espresso Coffee Machine Espresso machines heat water to near boiling and then force it under pressure to pass through tightly packed ground coffee in portafilters. They can also be used to make milk-based drinks. The majority of espresso makers have programmable settings for drink sizes and strengths. They may also feature proportional-integral-derivative (PID) temperature controls, which monitor and control on-off cycles to keep the boiler at an
Like
Comment
Share
