Ascaso Steel DUO PLUS Espresso Machine - PID, Programmable Volumetric Controller, Dual Thermoblock, 120V Black
$2,052.75
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- Ascaso quality and reliability
- Perfect for espresso-machines use
- Premium quality construction
- Durable and long-lasting design
- Easy to use and maintain
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Ascaso Steel Duo Plus Review — PID Dual Thermoblock Espresso Machine: Review
The Ascaso Steel DUO PLUS is a premium espresso machine designed for coffee enthusiasts who demand precision and consistency. It combines dual thermoblock technology with PID temperature control, allowing you to dial in the perfect shot. Volumetric programming simplifies brewing, while the walnut-accented joystick steam wand offers excellent control for milk frothing. Built with a stainless steel and carbon steel body, this machine is as durable as it is stylish. It includes a competition-grade shower screen, adjustable OPV, and limescale prevention for long-term reliability. While it commands a high price, the DUO PLUS delivers cafe-quality results at home, making it a worthy investment for serious baristas.
Product Overview
The Ascaso Steel DUO PLUS is a dual thermoblock espresso machine that heats water independently for brewing and steaming, ensuring no wait time between shots and steam. The PID controller maintains precise brewing temperature (adjustable in 1°F increments), displayed on a digital screen. The volumetric controls allow you to program preinfusion, single shot, double shot, and auto-standby, while the adjustable OPV lets you fine-tune brew pressure. The machine includes a 67 fl oz water tank, active cup warmer, and a removable wire grid drip tray. Its compact footprint (12.5"D x 10.5"W x 15"H) fits most countertops, though it weighs 40 pounds. The included accessories feature two portafilters (double and bottomless) with walnut handles, five professional baskets (7g, 14g, 18g, 21g, and blind), a stainless steel tamper, two steam tips (1-hole and 3-hole), and a coffee scoop. The 100% AISI 316 stainless steel water circuit ensures purity. The machine runs on 120V (2100 watts) and is compatible with ground coffee and pods. Care involves regular cleaning cycles, with a programmable automatic cleaning mode. Limescale prevention technology helps maintain the thermoblock circuits, though periodic descaling is still recommended. The steel body resists scratches, and the walnut accents add a refined touch.
Key Features
PID Temperature Control
- ✓Adjustable in 1-degree increments for precise brewing temperatures.
- ✓Digital display for easy monitoring and adjustment.
- ✓Ensures consistent extraction from shot to shot.
Dual Thermoblock System
- ✓Separate thermoblocks for brewing and steaming eliminate wait times.
- ✓Continuous, unlimited steam with stable pressure for microfoam.
- ✓Aluminum and stainless steel construction for durability and energy efficiency.
Volumetric Programming
- ✓Programmable preinfusion, single, and double shot volumes.
- ✓Auto-standby mode saves energy when idle.
- ✓Simplifies workflow for consistent results every time.
Included Accessories
- ✓Two portafilters (double and bottomless) with walnut handles.
- ✓Five professional baskets (7g, 14g, 18g, 21g, and blind).
- ✓Stainless steel tamper, two steam tips, and coffee scoop.
Build Quality & Materials
- ✓Carbon steel and stainless steel body for robust construction.
- ✓Walnut joy stick steam wand lever adds finesse and control.
- ✓Competition shower screen ensures even water distribution.
Limescale Prevention
- ✓Integrated technology keeps thermoblock circuits free of buildup.
- ✓Stainless steel water circuit (AISI 316) resists corrosion.
- ✓Extends machine lifespan and maintains performance.
User-Friendly Maintenance
- ✓Programmable automatic cleaning mode for effortless upkeep.
- ✓Removable drip tray and easy-access water tank.
- ✓Food-grade silicone gasket ensures a hygienic seal.
Build & Materials
The Ascaso Steel DUO PLUS is built with a combination of carbon steel and stainless steel, giving it a substantial feel and a sleek, modern appearance. The machine's casing is robust and resistant to dents or scratches, while the walnut accents on the joystick steam wand lever and portafilters add a touch of elegance. The 58mm commercial-grade portafilter and competition shower screen ensure even extraction. The water tank is rear-mounted and holds 67 fl oz, with a clear window to monitor levels. The active cup warmer on top heats cups ready for brewing. The drip tray features a removable wire grid for easy cleaning. Overall, the build quality reflects Ascaso's attention to detail, though the 40-pound weight means it's not easily moved once placed.
Shot Quality
The dual thermoblock system allows the DUO PLUS to start brewing and steaming within minutes, with no recovery time between processes. PID control delivers stable brewing temperatures, which reviewers note results in consistent, well-extracted shots. The adjustable OPV enables fine-tuning of brew pressure, and when dialed in, the machine produces espresso with rich crema and balanced flavor. The steam performance is powerful: the four-hole steam tip creates microfoam quickly, while the one-hole tip offers precision for latte art. Some users mention a learning curve, especially for volumetric programming and pressure adjustment. The limescale prevention system helps maintain performance, but regular descaling is still necessary. Overall, the DUO PLUS performs at a professional level, though its complexity may suit experienced home baristas best.
Pros and Cons
What Works
- ✓PID temperature control with 1°F increments for precise extraction.
- ✓Dual thermoblock allows simultaneous brewing and steaming without delay.
- ✓Volumetric programming with preinfusion for consistent shots.
- ✓Adjustable OPV for pressure customization.
- ✓Includes extensive accessories: two portafilters, five baskets, tamper, two steam tips.
- ✓Stainless steel water circuit ensures water purity.
- ✓Limescale prevention extends thermoblock life.
- ✓Durable steel build with attractive walnut accents.
What Doesn't
- ✗High price point limits accessibility.
- ✗Learning curve for advanced features like volumetric programming.
- ✗Heavy (40 pounds) and large footprint for some countertops.
- ✗Only two reviews available, making long-term reliability uncertain.
- ✗120V only; not dual voltage for international use.
- ✗No built-in grinder or pressure gauge.
The Verdict
The Ascaso Steel DUO PLUS is an exceptional espresso machine that combines dual thermoblock technology with precise PID control and volumetric programming. It offers professional-level performance for home baristas willing to invest both financially and in learning its features. The build quality is outstanding, with a durable steel body and elegant walnut accents. While the price is steep and the learning curve significant, those who master it will be rewarded with cafe-quality espresso and steam. It's a strong recommendation for enthusiasts seeking a serious upgrade from entry-level machines.
Who Is This For?
Home baristas seeking precision control
PID temperature adjustment and volumetric programming allow for meticulous shot tuning.
Enthusiasts upgrading from entry-level machines
Dual thermoblock and commercial-grade portafilter offer a significant step up in performance.
Small offices or cafes needing quick back-to-back drinks
Simultaneous brewing and steaming reduce wait times for multiple orders.
Price vs Value
What You Get
- Dual thermoblock for simultaneous brew and steam without delay.
- PID temperature control with 1°F precision for consistent extraction.
- Volumetric programming with preinfusion for repeatable shots.
- Five professional baskets and two portafilters for different doses.
- Powerful steam system with two tips for versatile frothing.
- Durable steel construction with limescale prevention for longevity.
What You Pay
$2,052.75 (full retail price)
Frequently Asked Questions
What is a dual thermoblock system?
Can I use ESE pods with this machine?
How do I clean the machine?
Does it come with a warranty?
What is the voltage requirement?
How long does it take to heat up?
Is the steam wand powerful for latte art?
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Product Specifications
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