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Ascaso Steel Duo Espresso Machine

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Spanish design meets convenient technology with the Ascaso Steel Duo Espresso Machine. Built to elevate your home espresso experience, the Steel Duo brings dual thermoblocks and PID temperature control in a classic stainless steel package. Equipped with PID temperature control for highly consistent espresso temperatures, the Steel Duo's screen also offers access to volumetric shot programming, shot timers, and programmable pre-infusion. Other pro-espresso niceties like an adjustable OPV and multiple basket options make the Steel Duo an excellent addition to any kitchen.

  • Skill Level

    Beginner: Simple controls and forgiving pressurized baskets help new users brew better.

    Intermediate: For the daily barista looking for finer shot controls and higher machine quality.

    Expert: For the espresso enthusiast who needs premium components and cutting-edge brew features.

  • Programming

    Manual: Manual dosing and steaming puts drink quality in your hands.

    Moderate: Espresso programming adds consistency to every drink you make.

    Automatic: Automated brewing and steaming make espresso even easier.

  • Size

    Compact: 8" Width or less

    Mid-Size: 8-12" Width

    Full-Size: 12" Width or more

  • Temp Control

    Single Boiler: A single boiler handles both brewing and steaming.

    Double Boiler: Dedicated brew and steam boilers allow for increased consistency.

    Thermoblock: A quick-heating boiler alternative for faster warm-up times.

    Heat Exchanger: Flash-heated brew water and a large steam boiler lets you brew and steam simultaneously.

    Boiler+Thermoblock: A traditional boiler for brewing with a thermoblock for instant steaming.

    Double Thermoblock: Two dedicated thermoblocks offer instant brewing and steaming.

    Double Thermoblock
  • Dual Thermoblocks: Dedicated thermoblocks allow side-by-side brewing and steaming.
  • PID Temperature Control: Set and adjust your selected brew temperature and offset on the fly.
  • Electronic Brew Options: The PID also includes controls for preinfusion, dwell time, and doubles as a shot timer during brewing.
  • Volumetric Shot Programming: Single and double shots can be programmed by volume instead of time.
  • Spanish Design: The Steel Duo comes equipped with wood furniture and is availabe in stainless steel or powdercoated black or white colors.
  • Built in Barcelona: Each Steel Duo is built by hand in Barcelona, Spain.
    • Pros
      • Modern Classic: The Steel Duo brings the classic, industrial design of earlier semi-autos with all the modern technology you could ask for inside.
      • Steady As She Goes: Once set up, the Steel Duo offers incredibly consistent, repeatable, and quality espresso.
    • Cons
      • Steam Power: The Steel Duo's dual thermoblock design requires a NEMA 5-20 amp plug and circuit.

About Ascaso

Founded in 1962 by Jesus Ascaso, Ascaso has garnered acclaim for their high-performing espresso hardware. Combining retro style with functional engineering, Ascaso espresso machines optimize all aspects of production to craft great-tasting espresso in a matter of seconds. If you’re looking for a genuine Spanish espresso maker, Ascaso is a great choice.Check out our line of Ascaso espresso machines here at Seattle Coffee Gear Today!

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  • Manufacturer
  • Skill Level
  • Width
    10.5 inches
  • Depth
    12.5 inches
  • Height
    15 inches
  • Watts
    2100 W
  • Volts
    120 V
  • Cup Clearance
    3.5 inches
  • Reservoir Size
    60 oz
  • Solenoid Valve
  • Cup Tray
  • Portafilter Size
  • Warm Up: Brew Time
  • Boiler Design
  • Certified to NSF/ANSI Standards
  • Pod Friendly
    Yes - without adaptation
  • Water Sources
    Reservoir/Internal Tank
  • Auto Shut Off
  • Auto On
  • Pre-Infusion/Aroma
  • Material
    Metal and Plastic

Warranty Information

What it Covers: Ascaso Machines and Grinders

Length: 1 year parts and labor

Who Supports the Warranty: Seattle Coffee Gear

Warranty Contact Information: 866-372-4734 or email us at

Notes: Read more about Seattle Coffee Gear's Warranty coverage.

Can SCG Repair? Yes, Machines Only read more about our repair services

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Customer Rating
94% of 100
82% of 100
100% of 100
As low as $1,195
As low as $1,335
As low as $1,435
Auto On No No No
Auto Shut Off No Yes Yes
Boiler Design Single Boiler Thermoblock Thermoblock
Boiler Material Brass Stainless Steel-lined Aluminum
Boiler Volume 0.3L
Cup Clearance 3 inches 3 inches 3 inches
Cup Tray Yes Yes Yes
Depth 11.0 inches 13.5 inches with portafilter 15.5 inches
Height 13.5 inches 13.5 inches 15.5 inches
Portafilter Size 58mm 58mm 58mm
Programmability PID, Pre-infusion, Shot Time PID, Pre-infusion, Shot Time
Reservoir Size 2L 48 ounces 48 Ounces
Solenoid Valve Yes Yes Yes
Warm Up: Brew Time 3:30 3:41 3:38
Water Sources Reservoir/Internal Tank Reservoir/Internal Tank Reservoir/Internal Tank
Width 9.5 inches 10 inches 11.25 inches
Questions & Answers