Introduction
This manual provides detailed instructions for the safe and efficient operation, maintenance, and troubleshooting of your CAFELFFE MK-501 Portable Coffee Maker. Please read this manual thoroughly before using the device to ensure optimal performance and longevity.
The CAFELFFE MK-501 is a versatile 3-in-1 portable espresso machine designed for use with ground coffee, Nes Original capsules, and DG* capsules. It operates manually, requiring no electricity or batteries, making it ideal for travel, camping, hiking, and other outdoor activities.

Image: The CAFELFFE MK-501 Portable Coffee Maker, a compact black device with a clear lower cup containing espresso.
Product Components
Familiarize yourself with the various parts of your CAFELFFE MK-501 Portable Coffee Maker:

Image: An exploded view of the CAFELFFE MK-501 components, including the coffee brewing adaptor, pump, coffee cup, DG* brewing adaptor, DG* puncture tool, spoon, powder container, water tank, and NE* container.
- Water Tank: Holds hot or cold water for brewing.
- Pump (Pum): Manual lever for generating pressure.
- Coffee Cup: Detachable cup for collecting brewed coffee.
- Coffee Brewing Adaptor: General adaptor for various brewing methods.
- Powder Container: Used for ground coffee.
- Coffee Powder Filter: Filter for ground coffee.
- NE* Container: Adaptor for Nes Original capsules.
- DG* Brewing Adaptor: Adaptor for DG* capsules.
- DG* Puncture: Tool for puncturing DG* capsules.
- Spoon: For measuring ground coffee.
Setup and First Use
Before first use, disassemble all removable parts and wash them with warm soapy water. Rinse thoroughly and dry completely.
Assembling for Different Coffee Types:

Image: The CAFELFFE MK-501 demonstrating its 3-in-1 compatibility with separate kits for ground coffee, NS* capsules, and DG* capsules.
1. For Ground Coffee:
- Use the provided powder container and coffee powder filter.
- Place the filter into the powder container, then fill with 7-8 grams of fine or medium-fine ground coffee.
- Attach the powder container to the main brewing unit.
2. For NS* Capsules (Nes Original compatible):
- Insert an NS* compatible capsule into the NE* container.
- Attach the NE* container to the main brewing unit.
3. For DG* Capsules (DG* compatible):
- Insert a DG* compatible capsule into the DG* brewing adaptor.
- Use the DG* puncture tool to prepare the capsule if necessary.
- Attach the DG* brewing adaptor to the main brewing unit.
Note: NS* and DG* refer to third-party capsule types and are not affiliated with CAFELFFE. Compatibility may vary with non-original capsules.
Operating Instructions
Follow these steps to brew coffee with your CAFELFFE MK-501:

Image: A three-panel image illustrating the brewing process: 1. Filling with hot water and inserting a capsule/ground coffee, 2. Pressing the lever to extract coffee, 3. Enjoying the brewed coffee.
- Prepare Coffee: Depending on your chosen method (ground coffee, NS* capsule, or DG* capsule), assemble the appropriate components as described in the 'Setup' section.
- Add Water: Fill the water tank with hot water (for hot espresso) or cold water/ice cubes (for cold brew/iced Americano). The maximum capacity is 80ml.
- Assemble: Securely attach the water tank to the brewing unit. Ensure all parts are tightly sealed.
- Extract Coffee: Hold the device firmly. Press the pump lever repeatedly to build pressure and extract the coffee into the detachable coffee cup. Continue pressing until the desired amount of coffee is dispensed. The device can generate 13-18 Bar pressure for optimal extraction.
- Enjoy: Detach the coffee cup and enjoy your freshly brewed coffee.
Hot and Cold Brewing Options:
The CAFELFFE MK-501 supports both hot and cold brewing. For hot espresso, use hot water. For a refreshing iced Americano or cold brew, simply add cold water and/or ice cubes to the water tank before brewing.
Maintenance and Cleaning
Regular cleaning ensures the longevity and hygiene of your coffee maker. The open design facilitates simple and quick cleaning.

Image: Two CAFELFFE MK-501 units, one black and one white, being rinsed under splashing water, illustrating ease of cleaning.
- Disassembly: After each use, disassemble all removable parts (water tank, brewing unit, coffee cup, adaptors, filter).
- Rinse: Rinse all components under running water to remove coffee grounds or residue.
- Wash: Wash parts with warm soapy water. A soft brush may be used for stubborn residue.
- Rinse Thoroughly: Ensure all soap residue is removed.
- Dry: Allow all parts to air dry completely before reassembling or storing.
- Storage: Store the clean and dry coffee maker in a cool, dry place.
Troubleshooting
If you encounter issues with your CAFELFFE MK-501, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No coffee or very slow extraction | Coffee grounds too fine or over-packed; insufficient water; clogged filter/capsule. | Use coarser grind or less coffee; ensure water tank is filled; check for blockages and clean components. |
| Weak or watery coffee | Insufficient coffee grounds; water not hot enough (for espresso); too much water; low pressure. | Increase coffee amount; use hotter water; ensure correct water volume (80ml max); pump more vigorously. |
| Leaking from connections | Parts not securely tightened; damaged O-rings. | Ensure all components are tightly screwed together; inspect O-rings for damage and replace if necessary. |
| Difficulty pressing the pump | Coffee grounds too fine or over-packed; airlock. | Adjust coffee grind or amount; ensure water is added before assembling. |
If the problem persists after attempting these solutions, please contact customer support.
Specifications
Key technical specifications for the CAFELFFE MK-501 Portable Coffee Maker:
- Model Number: MK-501
- Brand: CAFELFFE
- Product Dimensions: 2.1"D x 2.4"W x 8.5"H (5.3cm D x 6.1cm W x 21.5cm H)
- Item Weight: 14.88 ounces (420g)
- Operation Mode: Manual
- Pressure: 13-18 Bar (manual)
- Water Tank Capacity: 80ml
- Coffee Capacity: 8g (ground coffee)
- Coffee Input Type: Capsule (Nes Original compatible, DG* compatible), Ground Coffee
- Material: Tritan (BPA-free plastic)
- Special Features: Portable, Lightweight, Single Cup Brew, Hot and Cold Brewing Options, Ergonomic Design, Anti-scalding structure, Insulation function.
- Included Components: Carafe, Filter, Milk Frother (Note: Milk Frother component not explicitly detailed in product images/description, but listed in specifications. Refer to packaging for exact contents.)
Warranty Information
Specific warranty details for the CAFELFFE MK-501 Portable Coffee Maker are typically provided with the product packaging or on the manufacturer's official website. Please refer to these sources for comprehensive warranty terms and conditions.
Generally, product warranties cover manufacturing defects for a specified period from the date of purchase. Keep your proof of purchase for any warranty claims.
Customer Support
For further assistance, technical support, or inquiries regarding your CAFELFFE MK-501 Portable Coffee Maker, please contact CAFELFFE customer service. Contact information can usually be found on the product packaging, the official CAFELFFE website, or through your retailer.
When contacting support, please have your product model number (MK-501) and purchase details readily available.





