Izzo
Alex Duetto IV Plus
Best dual-boiler machine for serious home baristas seeking café-quality precision.
Experience café-quality espresso at home with the Izzo Alex Duetto IV Plus. This premium dual-boiler machine offers unparalleled control and consistency, featuring independent PID controllers for precise temperature management of both boilers. Its robust stainless steel construction houses lead-free copper and brass boilers, ensuring durability and excellent heat retention. The raised E61 group head with automatic pre-infusion and a quiet rotary pump deliver exceptional shots every time. Enjoy the convenience of switchable water sources and a no-burn steam wand for effortless milk frothing, making it a lifelong companion for coffee enthusiasts.
$2985.00
Owner Satisfaction
4.5
/ 5
Category Rank
278
/ 1189
#278 in Espresso Machines
Price vs Category Average
+58%
Above average
Dimensions
16.5.13.5.17.5.
/ in H x in W x in D
Who it's for
- Home baristas seeking professional-grade extraction consistency
- Quiet-seeking users wanting flexible water source options
- Serious enthusiasts prioritizing long-term machine reliability
Who should skip it
- Budget-conscious shoppers looking for entry-level pricing
- Apartment dwellers with limited kitchen counter space
- Impatient drinkers needing immediate morning caffeine
Performance breakdown
Temperature Stability
Dual PID controllers ensure professional-grade thermal consistency for every single shot.
Steam Power
The large 1.8L boiler delivers relentless pressure for perfect microfoam texture.
Build Integrity
Heavy-duty stainless steel construction built to last a lifetime of use.
Workflow Versatility
Switchable water sources offer seamless integration into any home coffee setup.
Extraction Control
E61 group head with pre-infusion provides total mastery over flavor profiles.
Operational Noise
Rotary pump operation remains impressively quiet during early morning brewing sessions.
Key Specs
Dimensions
16.5 in. H x 13.5 in. W x 17.5 in. D
Weight
72 lbs
Boiler Type
Dual Boiler
Boiler Material
Brass / Copper
Brew Boiler Size
0.8 L
Steam Boiler Size
1.8 L
Water Reservoir Capacity
2.3 L (81.18 oz)
Voltage
110 V
Features
- Dual boiler for simultaneous brewing and steaming
- Precise temperature control with dual PID
- E61 group head with pre-infusion
- Quiet rotary pump operation
- Switchable water source (tank or plumbed)
- No-burn steam wand for safety
- Rapid boiler recovery time
- Built-in shot timer for extraction control
What customers say
Home baristas highly regard the Alex Duetto IV Plus, focusing on its exceptional build quality and reliable performance. Users consistently praise the tank-like construction featuring commercial grade components and a stainless steel chassis, suggesting long term durability. The dual boiler system with PID control ensures superior temperature stability, directly resulting in consistently excellent espresso. The powerful steam wand easily creates café quality milk foam. While the initial cost is high, owners feel the machine offers tremendous value due to its longevity and professional features. This machine is often considered an endgame purchase, bringing a professional coffee experience home.
Know before you buy
Yes, the machine features a switchable water source, allowing you to choose between using the internal 2.3-liter reservoir or connecting it directly to a plumbed water line for continuous operation.
The dual boiler system features independent boilers for brewing and steaming. This allows you to pull espresso shots and steam milk simultaneously without any loss of temperature stability or pressure.
The E61 group head is a professional-grade standard known for its thermal stability and pre-infusion capabilities. It gently saturates the coffee puck before full pressure is applied, which helps ensure a more even extraction and a balanced flavor profile.
The machine is equipped with a no-burn steam wand, which features an insulated internal tube. This keeps the exterior of the wand cool to the touch during use and prevents milk from baking onto the surface, making it easier to clean.
The Alex Duetto IV Plus operates on 110V and is compatible with either a 15-amp or 20-amp circuit. You can toggle between these settings, though a 20-amp circuit is recommended for faster boiler recovery times.
The dual PID controllers allow you to set and maintain precise temperatures for both the brew and steam boilers independently. This level of control is essential for highlighting the specific flavor notes in different coffee roasts.
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