Post By TC
Espresso machine vs Espresso machine
I am after some advice and technical info regarding mid level to high end domestic double boiler or HX espresso machines. In particular, the internal workings and componentry of these. Some machines use copper boilers and copper tubing (R58) for example, others use stainless steel boilers and copper tubing (GS3), while others use stainless boilers and have some plastic componentry (BDB). My understanding is that copper is a more reactive metal which will lead to greater corrosion and descaling requirements compared to stainless. Some solenoid valves are brass others are not. In a domestic environment why would I go for a rotary pump over a vibratory pump? Noise isn't a consideration when you compare it to the noise output of a decent grinder. Why is an E61 type of brew head often perceived as better than others. I know plastic componentry is cheaper to manufacture and if engineered correctly can last a life time with minimal corrosion. From my understanding the copper boilers, tubing and E61 group head allows for relatively constant thermal stability, however, in this day and age with dual PID control, is that type of internal set up better? Now i know there is the question of longevity particulary in regard to a BDB however i have made equally good espresso's from all 3 machines and can't tell any difference with what is translated into the cup. Clearly those machines that are encased in beautiful high grade stainless and have copper componentry will cost more to manufacture but is the cost really worth it regarding brewing an espresso? Are espresso machine manufacturers keeping up with technology or just producing machines with outdated internals and engineering, or is it a case of when something performs perfectly why change it. Most machines only carry a 1 year warranty no matter what you pay. Please keep in mind, this question is regarding the internal componentry, not personal preferences on what the machine looks like.
All I can offer is the location of the return key >>>>>>> and the promise of a paragraph
Yep. Good call.