Maestri House MAESPRESSO 58 PRO Espresso Maker
Package List:
- Mainbody*1
- 58mm Portafilter*1
- Bottom Basket*1
- Magnetic Hidden WDT*1
- Regular Filter Screen*1
- High-Flow Filter Screen*1
- 2 in 1 Pressure Valve*1
- Silicone Drip Tray*1
- Thermal Silicone Cup*2
- Puck Screen*1
- Stand*1
- 58.3mm Tamper*1
- Tamper Mat*1
- Air Cotton Filter*20
- Sealing O-rings
FRONT
BACK
PORTAFILTER
BEFORE USE
- Dosing Range: 16~22g
- Max Water Volume: 80ml
- Suggested Brew Temperature:
- Dark Roast: 85~90°C
- Medium Roast: 88~92°C
- Light Roast: 92~95°C
FILTER SCREENS
- High-Flow Filter Screen: Being used with a finer grind of coffee ground for extraction, this can better showcase the flavors of medium or light roasts.
- Regular-Flow Filter Screen: With a pore size of 0.25mm, it is more beginner-friendly compared to the high-flow filter screen, and even mid to regular grinders can achieve a matching grind setting.
INSTALL
How to Install the Filter Screen in the Portafilter:
First, place the bottom O-ring into the O-ring groove (on the main body of the basket). Wet the filter screen and then attach it to the bottom basket. Then, align and tighten the threads in a clockwise direction. After tightening, you can observe the O-ring from the mouth of the basket. If there is any misalignment during installation, you can adjust it by squeezing the sealing ring with your fingers to correct it.
The bottom of the main basket’s external threads has a sealing O-ring that prevents coffee liquid from leaking out sideways due to excessive extraction pressure. This is especially true when using an extremely fine grind, where some of the pressure may be directed through the sealing O-ring and leak out the side. Users have the option to install or not, and those who are not using a fine grind (low flow rate filter screen) can choose not to install the external sealing O-ring.
How to Install the Mainbody onto the Stand:
Prepare the main body, stand, and black locking O-ring. Place the main body into the support slot of the stand, and then slide the black locking O-ring onto the locking groove of the main body from the back to the front.
How to Install the Portafilter onto the Mainbody:
Lift the portafilter from the lower left upwards until it makes contact with the main body, aligning the portafilter handle with the left side of the brand logo. Once the portafilter handle is smoothly guided into the slot, rotate it to the right until it aligns with the right side of the brand logo, indicating that the assembly is complete.
When distributing the coffee grounds, you can do so above the drip tray to prevent the coffee grounds from scattering on the countertop. After the distribution is complete, you can place the drip tray into the slot below the stand, which serves the function of a non-slip mat for your cup.
How to Install the 2-in-1 Pressure Valve onto the Mainbody.
The 8mm quick-disconnect air nozzle at the rear of the main body is used to connect the 2-in-1 pressure valve. After the connection, it supplies high-pressure gas to the main body head. This high-pressure gas is then applied to the hot water inside the portafilter, forcing the hot water through the coffee puck. Once the hot water has passed through the coffee grounds, the resulting coffee liquid flows out from the bottom of the portafilter.
BREW NOW
- Pour the ground coffee into the portafilter basket.
- Take out the WDT tool at the end of the handle to break up any clumps and distribute the coffee grounds evenly.
- Tamp the coffee powder into a solid puck using the tamper. Note that the quality of the puck’s integrity and density is crucial for the quality of the extracted coffee.
- Insert the thermal puck screen into the portafilter basket.
- A. The puck screen prevents the coffee grounds from being washed away when hot water is added.
- B. The silicone thermal cup reduces heat loss by minimizing contact between the hot water and the stainless steel surface.
- Preheat the portafilter basket.
- Mount the portafilter handle onto the main body.
- Start the electric pump or use a gas cartridge to apply the pressure and begin the extraction process.
- When the targeted weight of the extraction is reached, press the pressure release button to stop the extraction process.
How to Preheat the Portafilter:
- After tamping the coffee grounds, first place the thermal puck screen into the basket, ensuring that the shower screen is in full contact with the surface of the coffee puck.
- Pour 100°C boiling water into the thermal silicone cup until it reaches the top rim of the basket (above the silicone cup), and let it stand for 10 seconds. At this point, the silicone cup and the basket will absorb some of the heat from the water. However, due to the grooves on the underside of the silicone cup, the temperature will not be conducted to the coffee puck, preventing the premature release of carbon dioxide from the coffee grounds.
- Discard the preheated water.
- Pour 100°C boiling water into the silicone cup again, up to the edge of the cup. At this point, the temperature can be ensured not to drop due to contact with the basket.
CAUTION
- The maximum extraction pressure must not exceed 11 BAR. Exceeding the maximum pressure may cause damage to the equipment and could lead to danger.
- After reaching the target extraction weight, please ensure that you press the pressure release button until the pressure gauge reads 0, and only then should you remove the portafilter from the main body. If using a gas cartridge for extraction, you must first turn the cartridge pressure knob to the OFF position before pressing the pressure release button. It is strictly forbidden to forcibly remove the portafilter during the extraction process or before the pressure is fully released, as there is a risk of explosion.
CONTACT US
Every product we offer is backed by a 12-month warranty policy. For any after-sales requirements, please email us at [email protected], and we will assist you wholeheartedly. We assume no responsibility for any incidental or consequential damages caused by misuse of the machine. Please visit our official website at www.maestrihouse.com.
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Maestri House MAESPRESSO 58 PRO Espresso Maker-FAQs
What is the Maestri House MAESPRESSO 58 PRO espresso maker?
The MAESPRESSO 58 PRO is a pneumatic manual espresso maker designed for coffee enthusiasts who want control over pressure and extraction. It uses an external air pump or CO₂ cartridges to generate pressure, offering a unique alternative to traditional lever or electric espresso machines.
How does the pneumatic pressure system work?
This espresso maker uses external pressure sources like a bicycle pump or CO₂ cartridge to create up to espresso-level pressure. This allows users to manually control pressure profiling during extraction, giving more flexibility and precision compared to standard manual or automatic machines.
What makes the 58mm basket important?
The 58mm basket is the same size used in professional espresso machines, allowing compatibility with standard accessories and better extraction quality. It supports dosing up to around 25g of coffee, enabling richer and more customizable espresso shots.
Is the MAESPRESSO 58 PRO portable?
Yes, the compact and lightweight design makes it highly portable compared to traditional espresso machines. It doesn’t require electricity for operation, making it suitable for travel, camping, or small kitchens while still delivering café-style espresso quality.
Does the machine require preheating before use?
Unlike many manual espresso makers, the MAESPRESSO 58 PRO is designed to minimize or eliminate the need for preheating. This simplifies the workflow and reduces preparation time, making it more convenient for quick brewing sessions.
What accessories are needed to use this espresso maker?
The machine may require additional tools such as an air pump or CO₂ cartridges for pressure, as well as optional accessories like a scale or shot mirror. These are not always included and can be selected based on personal brewing preferences.
Is the MAESPRESSO 58 PRO suitable for beginners?
While beginners can use it, the machine is better suited for users familiar with espresso basics like grind size, dosing, and tamping. Its manual pressure control offers flexibility but also requires some learning to achieve consistent, high-quality results.
How easy is it to clean and maintain?
The espresso maker features a simple structure with fewer electronic components, making it relatively easy to clean. Regular rinsing and basic maintenance are usually sufficient, and the straightforward design helps reduce long-term upkeep requirements.
Can you experiment with different brew styles?
Yes, the machine supports experimenting with brew ratios, pressure levels, and extraction times. This makes it ideal for coffee enthusiasts who enjoy dialing in their espresso and exploring different flavor profiles with precision control.
What are common issues users may face with this machine?
Users may encounter issues like low pressure due to incorrect grind size, insufficient dosing, or uneven distribution. Proper technique, including fine grinding and even tamping, is essential to achieve optimal extraction and consistent espresso quality.