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This machine offers a 325mL brass coffee boiler for superior espresso extraction, and the there is a push-in switch on the lower front panel (hidden behind the steam wand in picture above). This switch activates the thermoblock which provides instant steaming/frothing capabilities on demand and at the same time of espresso extraction.Hence, this machine can be used in espresso only mode to save electricity. The steam boiler button can always remain on so when the power is turned on, the steam boiler will warm up with the coffee boiler. Good warm up time is approximately 15 minutes.This espresso machine is unlike other machines with a boiler/boiler configuration or a boiler/thermoblock configuration which only have one pump. When there is only one pump, the user can only extract espresso or steam milk. Why? Because if you are steaming and the steam boiler/thermoblock calls for water in the same pump as the coffee boiler, there will be an impact on the espresso pump pressure. These other machines can not do both at the same time because they only have the one pump which will not create enough pressure for espresso extraction AND steaming at the same time. Since the Ascaso Steel Duo has two pumps, one is always devoted to espresso extraction and one is always devoted to steam production.
"Ascaso Steel Duo Tronic"
G B on 3/6/2014 7:35:59 AM
Review: Got it during the Christmas sale on 1st-line and can't be happier with the great deal. This machine has some very nice features and is fully capable of producing great shots. I found the starting temperature to be a bit low so I have to flush some water out before I actually pull the shot. The working space is somewhat limited and even my regular height latte cup needs to be tilted a little to fit under the portafilter. Shots are decent, I do noticed that the temperature struggles to get as high... More details
Owned for: ~1-3 months
Would I buy this item again?: Maybe