Einführung
Welcome to the comprehensive user manual for your Ascaso Steel DUO Espresso Machine. This guide provides detailed instructions for setting up, operating, maintaining, and troubleshooting your machine to ensure optimal performance and longevity. Please read this manual thoroughly before first use.
Aufstellen
1. Auspacken und erste Platzierung
Carefully remove all packaging materials. Place the machine on a stable, level, and heat-resistant surface, ensuring adequate ventilation around the unit. Keep the machine away from direct sunlight and heat sources.

Abbildung 1: Vorderseite view of the Ascaso Steel DUO Espresso Machine in white.
2. Erstreinigung
Vor dem ersten Gebrauch die Außenseite des Geräts mit einem Tuch abwischen.amp cloth. Remove the water tank and drip tray, wash them with warm soapy water, rinse thoroughly, and dry. Do not immerse the main unit in water.
3. Füllen des Wassertanks
The Ascaso Steel DUO features a convenient side-fill water reservoir. Remove the water tank from the side of the machine. Fill it with fresh, filtered water up to the 'MAX' line. Reinsert the tank securely into its position.

Abbildung 2: Seite view of the Ascaso Steel DUO Espresso Machine, highlighting the water reservoir.
4. Stromanschluss
Plug the machine into a grounded 120V electrical outlet. Ensure the power switch is in the 'OFF' position before plugging in. Turn on the main power switch to begin the heating process.
Betrieb
1. Zubereitung von Espresso
- Vorwärmen: Allow the machine to fully heat up. The PID display will show the target temperature, and the brew light will indicate readiness.
- Kaffee mahlen: Frische Kaffeebohnen zu einer espressofeinen Konsistenz mahlen.
- Dosierung und Tamping: Dose the appropriate amount of ground coffee into the 58mm professional portafilter. Tamp gleichmäßig mit festem Druck.
- Locking Portafilter: Setzen Sie den Siebträger in die Brühgruppe ein und drehen Sie ihn fest, um ihn zu verriegeln.
- Brauen: Place your cup(s) under the portafilter spouts. Activate the brew switch. The volumetric controls allow for programmable single or double shots.
- Überwachung: Observe the pressure gauge during extraction for optimal brewing pressure (typically 9-10 bar).

Abbildung 3: Schräg view of the Ascaso Steel DUO Espresso Machine, showing the side and front.
2. Milch dämpfen
- Steam aktivieren: Turn on the steam switch. Allow the machine to reach steaming temperature, indicated by the PID display.
- Dampfdüse reinigen: Öffnen Sie kurz das Dampfventil, um eventuell vorhandenes Kondenswasser aus der Lanze abzulassen.
- Milch aufschäumen: Immerse the tip of the no-burn steam wand just below the surface of cold milk in a stainless steel pitcher. Open the steam valve fully.
- Texturierung: Lower the pitcher slightly to introduce air for aeration, then raise it to create a swirling vortex for texturing. Continue until desired temperature and texture are achieved.
- Reinigungsstab: Wischen Sie die Dampfdüse unmittelbar nach dem Aufdampfen mit einem feuchten Tuch ab.amp Mit einem Tuch abwischen und kurz erneut mit Dampf ausspülen, um eventuelle Milchreste zu entfernen.
3. PID and Volumetric Controls
The PID (Proportional-Integral-Derivative) temperature control allows for precise temperature adjustments in one-degree increments, ensuring consistent espresso extraction. The volumetric controls enable programming for pre-infusion, single shot, double shot, and auto-standby, enhancing shot consistency and ease of use. Refer to the machine's display and buttons for specific programming instructions.
Wartung
1. Tägliche Reinigung
- Tropfschale: Leeren und reinigen Sie die Tropfschale täglich, um ein Überlaufen und Bakterienwachstum zu verhindern.
- Siebträger und Körbe: Rinse the portafilter and filter baskets after each use. Backflush the group head regularly using a blind basket and espresso machine cleaner.
- Dampfdüse: Always wipe and purge the steam wand immediately after use to prevent milk buildup.
- Exterieur: Wischen Sie die Außenseite der Maschine mit einem weichen, fusselfreien Tuch ab.amp Tuch.
2. Entkalken
Regular descaling is crucial to prevent mineral buildup in the thermoblocks and water lines, which can affect machine performance and lifespan. The frequency depends on your water hardness. Use a descaling solution specifically designed for espresso machines and follow the product's instructions carefully. The machine features a programmable automatic cleaning mode to assist with this process.
3. Portafilter Care
The 58mm professional portafilter with its walnut wood handle should be handled with care. Avoid immersing the wooden handle in water for extended periods. Clean the metal parts thoroughly after each use.
Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Kein Wasserdurchfluss aus der Gruppierung | Empty water tank, clogged group head, pump issue. | Refill water tank. Perform a backflush. Contact support if pump is faulty. |
| Schwacher oder kein Dampf | Steam wand clogged, insufficient heating. | Clean steam wand hole with a pin. Allow machine to fully heat for steam. |
| Espresso wird zu schnell/zu langsam extrahiert | Mahlgrad falsch, tampDruck. | Mahlgrad feiner (zu schnell) oder gröber (zu langsam) einstellen.ampDruck. |
| Maschine heizt nicht auf | Power issue, thermoblock malfunction. | Check power connection. Contact support. |
Technische Daten
| Besonderheit | Detail |
|---|---|
| Marke | Ascaso |
| Modellname | Steel Duo |
| Farbe | Weiß |
| Technische Daten | 12.5"T x 10.5"B x 15"H |
| Artikelgewicht | 35 Pfund |
| Bandtage | 120 Volt |
| Kaffeemaschinentyp | Espressomaschine (halbautomatisch) |
| Besondere Merkmale | PID Temperature Control, Volumetric Programmable Settings, Dual Thermoblock, Adjustable OPV, Electronic Steam Control, No-Burn Steam Wand, Automatic Cleaning Mode |
| Siebträgergröße | 58 mm |
| Ursprungsland | Spanien |
Garantie und Support
The Ascaso Steel DUO Espresso Machine comes with a manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Ascaso website. For technical support, spare parts, or service inquiries, please contact Ascaso customer service or your authorized dealer. Keep your proof of purchase for warranty claims.





