THE MACHINE FILESteel Duo Plus

Steel Duo Plus

Name: Ascaso Steel Duo Plus
Brand: Ascaso

The Steel Duo Plus pairs PID-controlled brew and steam thermoblocks with volumetric shot presets and programmable preinfusion. SCG lists an upgraded lever-operated steam tap, shower screen, group gasket and removable drip grate, plus both double-spout and bottomless portafilters.

US catalog · Steel Duo Plus · 120 V

Seattle Coffee GearSpecialty retailer

Finish at Seattle Coffee Gear

$2,173.50

New · Black · 120 V

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In stock when checked Nov 9, 12:18 AM UTC. Affiliate link

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Specification research, not a hands-on review. Sources checked November 7, 2026.

Heating system: Dual thermoblock
Portafilter diameter: 58 mm
Milk workflow: Manual steam wand
Integrated grinder: No

Living with the Steel Duo Plus

Your coffee routine

Plan for a separate espresso grinder.

Milk workflow: Manual steam wand.

On your counter

Width 266.7 mm (10.5 in)
Depth 317.5 mm (12.5 in)
Height 412.75 mm (16.3 in)

Converted from the explicitly labeled retailer dimension at 25.4 mm per inch.

Allow extra room for access, refilling and cleaning. Published dimensions do not include installation clearance.

Daily setup

Power supply: 120 V · 2100 W.

Plan this setup

Follow the manufacturer’s manual for water, cleaning and maintenance instructions.

Specifications

Ascaso Steel Duo Plus specifications with source links
Portafilter diameter	58 mmSource ↗
US supply voltage	120 VSource ↗
Milk workflow	Manual steam wandSource ↗
Heating system	Dual thermoblockSource ↗
PID temperature control	YesSource ↗
Rated power	2100 WSource ↗SCG reports 2100 W and a 20 A plug/circuit for this listing.
Dosing system	Volumetric single/double shot presetsSource ↗
Width	266.7 mmSource ↗Converted from the explicitly labeled retailer dimension at 25.4 mm per inch.
Height	412.75 mmSource ↗Converted from the explicitly labeled retailer dimension at 25.4 mm per inch.
Depth	317.5 mmSource ↗Converted from the explicitly labeled retailer dimension at 25.4 mm per inch.
Integrated grinder	NoSource ↗The manual documents loading and tamping grounds in the removable filter holder. Whole beans therefore require a separate grinder. Used only to establish the manual coffee-preparation workflow, not to equate v2.5 and V3 generations.

Published source specifications. Unknown values stay unknown.

The buying decision

Is the Steel Duo Plus right for your setup?

Our interpretation of the documented features. Performance, taste and long-term reliability have not been independently tested.

Who this workflow suits

Steel Duo Plus lets you choose the machine and grinder separately. That gives you separate upgrade decisions, but the grinder belongs in the initial budget and counter plan. Choose it for the adjustment and dosing routine you want, rather than matching the machine’s finish alone.

The tradeoff to think through

The documented heating system is Dual thermoblock. Compare the actual drink-making sequence and milk controls. A manufacturer’s heater-ready claim should not be treated as a measurement of cup temperature, full-system readiness or beverage quality.

Ownership before accessories

Read the cleanup instructions for the exact milk system you will use. Check the manual’s water requirements, coffee-path cleaning and service arrangements before ordering optional accessories. Confirm the supplied baskets, jug, filters or adapters with the selected retailer; a family photograph does not establish what is in the box.

Three grinder workflows to consider

These are espresso-grinder options to research, not a claim of accessory or portafilter-support compatibility.

Baratza Encore ESPFor a numbered espresso adjustment range and dosing-cup routine.
Eureka Mignon ZeroFor weighing individual bean doses and changing coffee.
Eureka Mignon LibraFor a hopper-fed routine with weight-based dosing.

Understand the Ascaso lineup →Plan for maintenance →Check your counter space →Inspect the supporting sources ↓

Compare with

Ascaso / Steel Duo

Steel Duo

Compare the documented specifications side by side.

Ascaso / Dream PID

Dream PID

Heating system: Single thermoblock

Sources

This profile cites US manufacturer or retailer documentation. Source-listed offers keep their merchant SKU and finish; matching prices do not establish identical hardware revisions across stores.

Ascaso Steel Duo Plus · US product page ↗
Ascaso Steel Duo Plus Espresso Machine · Seattle Coffee Gear ↗
Technical specifications · Dimensions · Depth · Checked November 7, 2026
Ascaso Steel / Steel PID user manual · MAN-38 V8 (2022) ↗
English p.33 · Making coffee · If using ground coffee · Checked November 7, 2026

Product photography from the linked source; the pictured finish is noted above. Image source ↗. A manufacturer SKU identifies a configuration, not a confirmed hardware revision.