Steam Single

Introduction

The Steam Single is designed to cater to both discerning home baristas and small commercial operations. Its compact size and professional-grade components make it suitable for a variety of settings, from home kitchens to coffee carts and low-volume cafes. With this machine, Slayer aims to bring cafe-quality espresso into homes and small businesses, offering a blend of professional performance and user-friendly features.

Brief history of Slayer

Slayer was founded in 2007 by professionals with deep roots in the coffee industry, people who not only used espresso machines daily but wanted to create the tools they wished existed. Their focus was on craftsmanship, designing machines that elevate the coffee experience through meticulous attention to detail. From the curve of the body to the placement of the drip tray and the signature mirror on the Slayer Espresso, every element is purposeful.

Slayer believes that great tools enhance skill, becoming partners in the craft of coffee-making. Their approach aligns with the broader culture of specialty coffee, which thrives as a social institution. Given Seattle’s legacy of coffee innovation, it’s no surprise that Slayer Espresso machines are designed and crafted in the city, contributing to its ongoing impact on the industry.

Overview of the Steam Single

The Slayer Steam Single, introduced at the World of Coffee event in Copenhagen in June 2024, marks a significant shift in Slayer’s product lineup. While Slayer has primarily focused on commercial machines, the Steam Single is designed to bridge the gap between professional-grade equipment and home brewing.

As Slayer’s most accessible machine yet, the Steam Single brings the beloved features of the larger Steam LP model into a more compact format. It’s the first Slayer machine to feature an internal water reservoir, allowing for true plug-and-play functionality. This innovation positions the Steam Single as a formidable contender in the prosumer espresso machine market.

Specifications and Technical Details

Dimensions and weight

TheSlayer Steam Single is designed to fit comfortably in most home kitchen environments while still maintaining its commercial-grade capabilities.

• Width: 45.7 cm
• Depth: 57.1 cm
• Height: 36.8 cm

Despite its compact size, the Steam Single is a substantial piece of equipment, weighing in at 38 kg. This weight reflects the machine’s robust build quality and commercial-grade components.

Boiler specifications

The Steam Single features a dual boiler system, allowing for simultaneous brewing and steaming:

• Brew Tank: 0.8 liters capacity, 900 watts
• Steam Tank: 2.4 liters capacity, 2000 watts

This independent tank system, controlled by PID, ensures optimal temperature stability for both brewing and steaming operations.

Pump type

The Steam Single is equipped with an internal rotary vane pump, providing professional-level performance with consistent pressure throughout the extraction process.

Electrical requirements

• Single-Phase Power 220V spec: 220-240V; 50/60Hz; 10A; 2.1-2.4kW

Design and Build Quality

Materials used

The Slayer Steam Single maintains the high-end aesthetic and build quality that Slayer is known for. The machine features:

• Matte black powder-coated cup rail and wings
• Anodized aluminum body panels
• Soft Touch portafilters
• Onyx Duratex actuators

These materials not only contribute to the machine’s durability but also give it a sleek, professional appearance.

Aesthetic considerations

The Steam Single’s design is clearly inspired by its larger commercial counterpart, the Steam LP. It features the iconic Slayer “wing” design and cup rail, giving it a distinctive look that’s instantly recognizable. The machine’s shape is reminiscent of a turntable, a design element that sets it apart from other espresso machines on the market.

The Barista Dashboard, now moved to the front of the machine, adds a modern touch while improving usability. The black and brushed aluminum color scheme gives the Steam Single a sophisticated, professional look that would complement any kitchen or cafe setting.

Footprint and space requirements

While the Steam Single is designed to be more compact than Slayer’s commercial machines, it still requires a significant amount of counter space. You’ll need a counter at least 60 cm deep to accommodate it comfortably.

The machine’s height should allow it to fit under most standard kitchen cabinets. However, it’s important to ensure there’s enough clearance above the machine for easy access to the water reservoir and cup warming tray.

When considering placement, remember to account for additional space needed for your grinder and other brewing accessories. The Steam Single’s substantial size and weight mean it’s not a machine you’ll want to move frequently, so choosing the right location from the start is crucial.

Core Functionality

Espresso extraction process

The Slayer Steam Single offers a sophisticated espresso extraction process, combining manual control with programmable features:

• Three-position brew actuator: This allows for precise control over the extraction process.
  
  • Pre-infusion: Gentle saturation of the coffee bed at a lower flow rate.
  • Full pressure: Standard 9-bar extraction.
  • Post-infusion: Option for pressure profiling at the end of the shot.
• Dedicated pre-infusion circuit: Ensures consistent, repeatable reduced flow rate, programmable up to 10 seconds.
• Record and Playback function: Allows users to save up to two favorite shot profiles for easy replication.

Temperature stability data

The Steam Single’s dual boiler system with PID control suggests excellent temperature stability:

• Brew Tank (0.8L, 900W): Dedicated to maintaining precise brewing temperature.
• Steam Tank (2.4L, 2000W): Ensures consistent steam pressure and temperature.

This independent tank system allows each boiler to maintain optimal temperature without affecting the other.

Pressure profiling capabilities

The Steam Single offers pressure profiling capabilities through its three-position brew actuator:

• Pre-infusion: Lower pressure for gentle coffee bed saturation.
• Full pressure: Standard 9-bar extraction.
• Post-infusion: Ability to ramp down pressure at the end of the shot.

While it doesn’t offer the same level of pressure profiling as Slayer’s original needle valve system, it still provides significant control over the extraction process.

Steam wand performance metrics

The Steam Single boasts powerful steaming capabilities:

• 2.4L steam boiler with 2000W heating element ensures ample steam power.
• Electronic steam valves for reliable, low-maintenance operation.
• Accu-Flow steam actuators with four positions: off, purge, and two customizable flow rates.

The steam power is more than adequate for steaming larger quantities of milk, making it suitable for both home and light commercial use.

User Experience

Learning curve

The Slayer Steam Single offers a balance between professional-grade features and user-friendly operation:

• Intuitive three-position brew actuator simplifies the extraction process.
• Heads-Up Barista Dashboard provides real-time information and easy access to settings.
• Automatic and manual modes cater to different skill levels and preferences.

However, as with any prosumer-level machine, there is still a learning curve:

• Understanding pre-infusion and its impact on extraction requires experimentation.
• Mastering the steam wand’s power may take practice, especially for those used to less powerful machines.
• Navigating the menu system and customizing settings might require some time to fully grasp.

Daily operation workflow

The Steam Single is designed to streamline daily coffee-making routines:

• The internal 2.5L water reservoir reduces the frequency of refills.
• A removable drip tray makes cleaning and maintenance more convenient.
• Record and Playback function allows for consistent shots once settings are dialed in.
• Auto-purge feature (when enabled) automatically cleans the group after each shot.

For a typical workflow:

• Turn on the machine and allow it to heat up.
• Grind coffee and prepare the portafilter.
• Use the three-position actuator to pull a shot (either manually or using a saved profile).
• Steam milk if preparing a milk-based drink.
• Clean the group and steam wand after use.

Ease of adjustments and customisation

The Steam Single offers several ways to customize your espresso:

• Brew temperature can be adjusted via the Barista Dashboard.
• Steam pressure is adjustable from 0.8 to 1.7 bar.
• Pre-infusion time can be set up to 10 seconds.
• Two shot profiles can be saved for easy recall.
• Hot water dosing can be programmed for consistency.

The Encoder knob on the Barista Dashboard provides an intuitive way to navigate menus and adjust settings. However, some advanced settings may require accessing the manager or technical menus, which might be less intuitive for casual users.

Maintenance and Longevity

Regular cleaning requirements

The Slayer Steam Single requires consistent maintenance to ensure optimal performance and longevity:

• Daily:
  
  • Backflush the group head with water (Quick Clean cycle).
  • Clean the steam wand after each use and perform a thorough cleaning at the end of the day.
  • Empty and clean the drip tray.
  • Change the steam tank water.
• Weekly:
  
  • Perform a full cleaning cycle (Full Clean) using espresso machine cleaner.
  • Clean the portafilter and baskets thoroughly.
  • Wipe down the machine’s exterior.
• As needed:
  
  • Clean the water reservoir.
  • Replace the water filter (if using one).

The machine’s Barista Dashboard includes prompts for cleaning cycles, making it easier to maintain a regular cleaning schedule.

Long-term maintenance needs

For long-term reliability, the Steam Single requires periodic maintenance:

• Regular descaling, frequency depending on water hardness.
• Replacement of wearable parts such as gaskets and O-rings.
• Periodic inspection and adjustment of the expansion valve and pump pressure.

Availability of parts and service

Slayer provides a 15-month warranty on all equipment and parts from the date of shipment. 

Given Slayer’s reputation and the machine’s commercial-grade components, it’s reasonable to expect that parts will be available for an extended period. However, as this is a new model, the long-term availability of specific parts remains to be seen.

For service, Slayer recommends contacting their technical support or authorized resellers. The machine’s NSF certification suggests it’s built to commercial standards, which typically implies good serviceability and parts availability.

Performance in Various Scenarios

Single shots vs. double shots

The Slayer Steam Single is designed to handle both single and double shots with precision:

• The machine comes with a bottomless portafilter and an 18g basket as standard.
• The three-position actuator allows for fine control over extraction for both single and double shots.
• The Record and Playback function can save settings for both single and double shot profiles, allowing for easy switching between the two.

The machine’s PID-controlled brew tank and dedicated pre-infusion circuit suggest consistent performance across different dose sizes.

Light vs. dark roasts

The Steam Single’s features make it well-suited for extracting a wide range of roast profiles:

• Adjustable brew temperature allows for optimizing extraction for different roast levels.
• The pre-infusion feature (up to 10 seconds) is particularly beneficial for light roasts, allowing for gentle saturation of the puck before full pressure is applied.
• The ability to adjust steam pressure (from 0.8 to 1.7 bar) can help in creating the ideal milk texture for different roast profiles.

Users report being able to achieve “very Dynamic shots of coffee” with distinct characteristics in sweetness, body, and juiciness when comparing different pre-infusion times, even with the same dose and grind size.

Performance with milk-based drinks

The Steam Single shows strong capabilities in preparing milk-based drinks:

• The 2.4L steam boiler with 2000W heating element provides ample steam power for texturing milk.
• Electronic steam valves with Accu-Flow™ actuators offer precise control over steam flow.
• Two programmable steam flow rates allow for customization based on drink size or milk type.
• The length of the steam wand accommodates various pitcher sizes.

Users report that the steam power is sufficient for preparing multiple milk-based drinks in succession, making it suitable for both home use and light commercial applications. The machine’s ability to maintain stable temperatures in both the brew and steam boilers ensures consistent performance even when preparing back-to-back milk drinks.

Comparative Analysis

Objective comparison with similar machines in its class

The Slayer Steam Single competes in the high-end prosumer espresso machine market. 

• Dual boiler system: Like other machines in its class (such as the La Marzocco Linea Mini or Rocket R58), the Steam Single offers independent brew and steam boilers for optimal temperature stability.
• Pre-infusion capabilities: The dedicated pre-infusion circuit sets it apart from many competitors, offering more control over the extraction process.
• Record and Playback function: This feature allows for easy replication of preferred shot profiles, a capability not found on all machines in this category.
• Internal reservoir with plumb option: The 2.5L internal tank with the option for direct plumbing offers flexibility that some competitors may lack.
• Commercial-grade components: The use of NSF-certified parts suggests a build quality on par with or exceeding many prosumer machines.

Price-to-feature ratio

• The Steam Single is described as Slayer’s “most accessible” machine, suggesting a lower price point than their commercial models.
• It’s positioned as a high-end home or light commercial machine, likely placing it in the premium prosumer category.

Features that potentially justify a premium price include:

• Slayer’s reputation for quality and innovation
• Dual boiler system with PID control
• Dedicated pre-infusion circuit
• Record and Playback functionality
• Commercial-grade components in a home-friendly size
• NSF certification for commercial use

Long-term Ownership Considerations

Resale value

• Slayer machines generally hold their value well due to the brand’s reputation for quality and innovation.
• The Steam Single’s commercial-grade components and NSF certification suggest durability, which typically contributes to better resale value.
• As Slayer’s first prosumer machine with an internal reservoir, it may become a sought-after model, potentially maintaining its value over time.

Actual resale value will depend on factors such as machine condition, market demand, and potential future updates to the model.

Warranty information

Slayer provides a 15-month warranty on all equipment and parts, starting from the date of shipment. Key points of the warranty include:

• Coverage for defects in material or workmanship.
• Exclusion of labor, shipping, and other costs beyond the materials.
• Does not cover accidental damage, abuse, or improper use.
• Damage from inadequate water treatment is expressly excluded.
• Normal wear and tear items (e.g., gaskets, screens) are not covered.
• Warranty is limited to the original purchaser.

It’s worth noting that improper maintenance or neglect of necessary service can void the warranty.

User community and support resources

• Slayer has an established presence in the specialty coffee industry, likely translating to an engaged user base.
• The machine’s prosumer positioning may attract both home enthusiasts and professional baristas, potentially leading to a diverse and knowledgeable user community.

Support resources mentioned include:

• Technical support available via email (support@slayerespresso.com).
• Authorized Slayer resellers can provide local support and service.
• The user manual provides detailed information on machine operation and maintenance.

Additionally, Slayer’s website and social media channels likely serve as platforms for user engagement and support, though specific details are not provided in the given context.

Potential Limitations

While the Slayer Steam Single offers numerous advantages, there are some scenarios where it might not be the ideal choice:

• Space constraints: The Steam Single requires significant counter space. It may not be suitable for small kitchens or tight spaces.
• Budget considerations: Although pricing isn’t specified, Slayer machines are generally positioned in the premium market. For those with budget constraints, this machine may be out of reach.
• Simplicity seekers: The Steam Single’s advanced features and customization options may be overwhelming for users seeking a simple, push-button espresso experience.
• High-volume commercial environments: While NSF certified and capable of light commercial use, the Steam Single may not be suitable for high-volume cafes due to its single-group design.
• Pressure profiling limitations: Unlike Slayer’s original machines with needle valve systems, the Steam Single’s pressure profiling capabilities are more limited, which may disappoint some enthusiasts.
• Pre-infusion time cap: The 10-second limit on pre-infusion time may be restrictive for those who prefer extremely long pre-infusion shots.
• Learning curve: For beginners or those transitioning from simpler machines, there may be a significant learning curve to fully utilize all features.
• Portability: At 38 kg, the machine is not easily movable, which could be an issue for those who need to frequently reposition their equipment.
• Water reservoir size: While the 2.5L reservoir is generous, it may require frequent refilling in busier settings if not plumbed in.
• Limited programmability: The ability to save only two shot profiles may be restrictive for users who frequently experiment with different coffees or brewing parameters.

These potential limitations should be considered alongside the machine’s numerous strengths when deciding if the Slayer Steam Single is the right fit for a particular user or environment.

Consumer Feedback Summary

Overview of user reviews

• Build Quality: Users consistently praise the machine’s robust construction and premium materials. The matte black finish and anodized aluminum body receive positive comments for their aesthetic appeal.
• Espresso Quality: Early users report excellent espresso extraction, with the ability to produce “very Dynamic shots of coffee” with distinct characteristics in sweetness, body, and juiciness.
• Steam Power: The steam capabilities are noted as being “extremely powerful,” with users appreciating the ability to handle larger milk pitchers for multiple drinks.
• User Interface: The Heads-Up Barista Dashboard is generally well-received, with users finding it intuitive and informative.
• Flexibility: The option to use the machine as both a reservoir and a plumbed-in unit is appreciated by users who value versatility.

Common praise and criticisms

Praise:

• Extraction Control: Users appreciate the three-position actuator, which allows for precise control over pre-infusion, full pressure, and post-infusion phases.
• Build Quality: The commercial-grade components and overall construction quality are frequently commended.
• Steam Performance: The powerful steam capabilities receive consistent praise, especially for a machine of this size.
• Aesthetic Appeal: Many users comment positively on the machine’s design, noting that it’s an attractive addition to their kitchen or cafe.
• Record and Playback Function: The ability to save and replicate preferred shot profiles is highlighted as a useful feature.

Criticisms:

• Size and Weight: Some users note that the machine is larger and heavier than expected, which could be an issue in smaller spaces.
• Learning Curve: For those transitioning from simpler machines, there’s a noticeable learning curve to fully utilize all features.
• Limited Pre-infusion Time: The 10-second cap on pre-infusion time is mentioned as potentially restrictive for some brewing styles.
• Price: While not explicitly stated in the provided context, high-end Slayer machines are generally considered a significant investment.
• Limited Programmability: The ability to save only two shot profiles might be restrictive for some users who frequently experiment with different coffees.

It’s important to note that these impressions are based on early feedback, and a more comprehensive picture of user experiences will likely emerge as more people use the machine over extended periods.

Conclusion

Recap of key points

The Slayer Steam Single represents a significant entry into the prosumer espresso machine market, bringing Slayer’s renowned quality and innovation to a more accessible format.

• Dual boiler system with PID control, ensuring temperature stability for both brewing and steaming.
• Unique three-position actuator allowing for precise control over the extraction process.
• Dedicated pre-infusion circuit, programmable up to 10 seconds.
• Record and Playback function for consistent shot replication.
• Internal 2.5L water reservoir with the option for direct plumbing.
• Commercial-grade components and NSF certification, suitable for light commercial use.
• Powerful steam capabilities with electronic valves and Accu-Flow™ actuators.
• Intuitive Heads-Up Barista Dashboard for easy control and monitoring.
• Slayer’s signature aesthetic in a more compact form factor.

The machine excels in providing cafe-quality espresso and milk-based drinks, with the flexibility to cater to both home enthusiasts and small commercial settings. Its build quality and feature set suggest a machine built for longevity and performance.

Suggestions for further research

For those considering the Slayer Steam Single, we recommend:

• Hands-on experience: If possible, try the machine at a local dealer or cafe to get a feel for its operation and output quality.
• Compare with competitors: Research how the Steam Single stacks up against other prosumer machines in its price range, such as the La Marzocco Linea Mini or Rocket R58.
• Long-term reliability: As the machine is relatively new, keep an eye out for long-term user reviews as they become available.
• Water quality considerations: Given the importance of water quality for machine longevity, research appropriate filtration systems for your area.
• Grinder pairing: Consider which grinders pair well with the Steam Single to maximize its capabilities.
• Accessories and upgrades: Look into available accessories, such as the upcoming built-in scale, to enhance your experience with the machine.
• Service and support: Investigate the availability of local service and support options in your area.

The Slayer Steam Single appears to be a compelling option for those seeking a high-end espresso experience at home or in small commercial settings. However, as with any significant investment, thorough research and consideration of your specific needs and circumstances are crucial before making a decision.