1. Product Overview & Components
The KF-JN-02 is a 3-in-1 portable coffee machine designed for ultimate convenience, allowing you to brew coffee from small capsules, large capsules, or ground coffee. It features intelligent heating and is suitable for various environments including travel, car, home, and camping.

Product Parts Description:

- Upper Cover: Top part of the machine.
- Water Bin: Reservoir for water.
- Fuselage: Main body of the machine.
- Start Button: Power and operation control.
- Status Display Lamp: Indicates machine status (e.g., heating, extraction).
- Capsule Warehouse (Small Cup): Adapter for small capsules.
- Capsule Warehouse (Large Cup)/Pressure Locking Bin: Adapter for large capsules.
- Powder Silo Cover: Cover for the coffee powder compartment.
- Powder Silo: Compartment for ground coffee.
- Coffee Cup: Detachable cup for brewed coffee.
2. Setup & Assembly
The coffee machine is designed for easy assembly based on your preferred coffee type.
Assembly Steps:

- For Large Coffee Capsules:
a. Separate the large capsule warehouse from the pressure locking bin.
b. Insert the large coffee capsule into the warehouse.
c. Reattach the pressure locking bin to the warehouse.
d. Attach the assembled capsule unit to the main body of the machine, then attach the coffee cup. - For Small Coffee Capsules:
a. Separate the small capsule warehouse from its base.
b. Insert the small coffee capsule into the warehouse.
c. Reattach the base to the warehouse.
d. Attach the assembled capsule unit to the main body of the machine, then attach the coffee cup. - For Coffee Powder:
a. Remove the powder silo cover from the powder silo.
b. Add desired amount of ground coffee into the powder silo using the provided spoon.
c. Replace the powder silo cover, ensuring it's securely closed.
d. Attach the assembled powder unit to the main body of the machine, then attach the coffee cup.
Charging the Device:
The portable espresso machine can be charged using the provided Type-C USB cable. It supports charging while in use, making it convenient for on-the-go charging during travel, camping, or in your car.

3. Operating Instructions
The KF-JN-02 offers intelligent extraction with options for both hot and cold brewing.
Adding Water:
Remove the upper cover and pour water into the water bin. Ensure the water level does not exceed the maximum fill line.

Brewing Coffee:

- For Hot Coffee (with heating):
a. Add cold water to the water bin.
b. Double-tap the power switch. The display light will blink orange, indicating the heating process has started. The machine will automatically extract coffee after heating (approx. 4-6 minutes). - For Cold Coffee (direct extraction):
a. Add cold water to the water bin.
b. Long press the power switch for 2 seconds. The display light will blink green, and the machine will directly extract coffee without heating. - For Hot Coffee (using pre-heated water):
a. Add hot water to the water bin.
b. Long press the power switch for 2 seconds. The display light will blink green, and the machine will directly extract coffee.
Usage Scenarios:
This portable espresso machine is designed for versatility, fitting seamlessly into various aspects of your life:

Operation Demonstration Video:
Watch this video for a visual guide on setting up and operating your portable coffee machine.
4. Maintenance & Cleaning
Regular cleaning ensures optimal performance and longevity of your coffee machine.
Easy Cleaning:

- Automatic Cleaning: Just add clean water to the water bin and run the machine once without adding any coffee capsules or powder. This will automatically clean the inside of the machine.
- Manual Cleaning: The capsule adapter and food-grade coffee cup can be easily removed. Rinse them directly with water after each use. Ensure all parts are completely dry before reassembling or storing.
5. Troubleshooting
If you encounter any issues with your coffee machine, please refer to the following common troubleshooting steps:
- Machine not turning on: Ensure the machine is fully charged. Connect it to a power source using the Type-C USB cable and allow it to charge for 3-4 hours.
- Coffee not extracting or weak extraction:
a. Check if there is enough water in the water bin.
b. Ensure the capsule or ground coffee is correctly inserted and the compartments are properly sealed.
c. If using ground coffee, ensure it is not too finely ground, which can block the filter.
d. For hot extraction, ensure the heating cycle is complete (orange light turns off or changes color). - Leaking: Ensure all parts, especially the coffee cup and capsule/powder compartments, are securely attached and tightened. Check for any visible damage to seals or O-rings.
- Unusual noises: If you hear unusual grinding or straining noises, stop the machine immediately. Check for any foreign objects or blockages in the coffee path.
If the problem persists after following these steps, please contact customer support for further assistance.
6. Specifications
Detailed product parameters for the KF-JN-02 Portable Espresso Coffee Machine:

| Parameter | Value |
|---|---|
| Product Name | Portable espresso coffee machine |
| Product Model | KF-JN-02 |
| Product Capacity | 60ml |
| Rated Power | 72W |
| Rated Voltage | 12V |
| Battery Capacity | 18650 / 2500mAh*3 |
| Charging Time | About 3-4 hours |
| Current | 4-6A |
| Working Time | 60 seconds per extraction |
| Product Size | 83.5 x 245.5 x 83.5mm |
| Packing Size | 90 x 90 x 271mm |
| Housing Material | Plastic |
| Certification | CE |
| Origin | Mainland China |
Package Contents:
- Coffee machine mainframe x 1
- USB cable x 1
- Instruction Manual x 1
7. Warranty & Support
Your portable coffee machine is designed for reliability and convenience. For any product-related inquiries or support, please contact the seller directly through the platform where you purchased the item.
Service Guarantees:
- Free Returns: Enjoy free returns within 90 days of purchase.
- Fast Delivery: The seller offers fast delivery services. In case of delayed delivery, a $1.00 coupon code may be provided.
- Refund Policy: Refunds are available if the package is lost, items are damaged upon arrival, or if delivery is not made within 60 days.
Please retain your purchase receipt or order details for any warranty claims or support requests.