1. Introduction
The COOK WITH COLOR Portable Electric Lunch Box, model YWLB22E, is designed to heat meals for consumption at home, in the office, or while traveling in a car or truck. This manual provides essential instructions for safe and effective use, maintenance, and troubleshooting.
Important Safety Information
- Read all instructions thoroughly before using the appliance.
- Do not immerse the main heating unit of the lunch box in water or any other liquid.
- Ensure both power cords (AC and DC) are undamaged before use. Do not use if cords are frayed or broken.
- Keep the appliance out of reach of children and pets. Adult supervision is required when used near children.
- Always unplug the lunch box from the power source when not in use or before cleaning.
- Use only with the specified voltage: 12V DC for car/truck use and 110V AC for home/office use.
- Do not operate the lunch box if it has been damaged in any way. Contact customer support for assistance.
- Avoid touching hot surfaces during and immediately after operation. Use handles and wear oven mitts if necessary.
2. Product Components
The COOK WITH COLOR Portable Electric Lunch Box includes the following items:

This diagram illustrates each individual component of the electric lunch box system. It clearly labels the lunch box cover, the 12 oz storage container with its lid, the stainless steel spoon and fork, the main heating unit, the food-grade stainless steel container, the insulated carry tote, a dishcloth, a silicone dish scrubber, and the power cord for car and truck use.
- Heating Unit: The main body of the lunch box with the heating element.
- Food Grade Stainless Steel Container: For holding your main meal.
- Removable Inner Container: A 12 oz plastic container with a lid for side dishes or smaller portions.
- Lunch Box Cover: Features four clasps for secure sealing and a steam vent.
- Standard AC Power Cord: For connecting to 110V home or office outlets.
- Car/Truck DC Power Cord: For connecting to 12V vehicle power outlets.
- Stainless Steel Spoon and Fork: Reusable utensils.
- Carry Tote: An insulated bag for easy transport.
- Dishcloth: For cleaning.
- Silicone Dish Scrubber: For cleaning the containers.
3. Setup
Initial Cleaning
Before using your COOK WITH COLOR Portable Electric Lunch Box for the first time, it is important to clean all food-contact parts:
- Wash the stainless steel container, removable plastic container, spoon, fork, and lunch box cover with warm, soapy water.
- Rinse all parts thoroughly with clean water.
- Dry all parts completely before assembly.
- Wipe the exterior of the main heating unit with a damp cloth. Do not submerge the heating unit in water.
Assembly

This image presents an exploded view of the lunch box, detailing its internal structure. It shows the main black heating base, the stainless steel food container lifted above it, and the lid with its gray clasps and a compartment for the included spoon and fork. This illustrates how the components fit together.
To assemble your lunch box:
- Place the clean stainless steel container securely inside the main heating unit.
- If using, place the smaller removable plastic container inside the stainless steel container.
- Ensure the lunch box cover is properly aligned before latching.
4. Operating Instructions
Preparing Your Meal
- Place your prepared food into the stainless steel container. You may use the removable plastic container for side dishes if desired.
- For optimal and more even heating, and to prevent food from drying out, add approximately 1-2 tablespoons of water to the bottom of the main heating unit, underneath the stainless steel container. This will generate steam during heating.
- Secure the lunch box cover by firmly closing all four clasps.
- Open the small steam vent cap on the top of the lid to allow steam to escape during the heating process.

This image provides a visual, step-by-step guide on operating the lunch box. It shows placing food and a small amount of water, securing the lid with its clasps and opening the steam vent, plugging in the power cord (both home and car options shown), and finally, the heated meal ready for consumption.
Heating Your Meal (Home/Office 110V)
- Connect the standard AC power cord to the lunch box's power port.
- Plug the other end of the AC power cord into a standard 110V wall outlet.
- The indicator light on the front of the lunch box will illuminate, signaling that the heating process has started.
- Allow approximately 30-50 minutes for your food to heat thoroughly. Heating times may vary based on the type of food, its initial temperature, and desired warmth.
Heating Your Meal (Car/Truck 12V)

This image shows the electric lunch box positioned on the floor of a vehicle, indicating its use for car or truck travel. The lunch box is closed and ready for heating a meal on the go.
- Connect the car/truck DC power cord to the lunch box's power port.
- Plug the other end of the DC power cord into your vehicle's 12V power outlet (cigarette lighter socket).
- The indicator light will illuminate, indicating that heating has commenced.
- Allow approximately 40-60 minutes for your food to heat thoroughly. Heating times may vary based on food type, initial temperature, vehicle power output, and ambient temperature.
Note: For best results, it is recommended to start heating your meal approximately 30-60 minutes before you plan to eat.
5. Maintenance and Cleaning
Proper cleaning and maintenance will ensure the longevity and hygiene of your electric lunch box.
- Always unplug the lunch box from the power source and allow it to cool completely before attempting any cleaning.
- The stainless steel container, removable plastic container, spoon, and fork are dishwasher safe.
- The lunch box cover should be hand washed with warm, soapy water. Ensure the steam vent cap is also cleaned.
- Wipe the exterior of the main heating unit with a damp cloth. Do not immerse the heating unit in water or rinse it under running water.
- Ensure all parts are completely dry before reassembling or storing the lunch box to prevent mold or mildew.
6. Troubleshooting
If you encounter any issues with your COOK WITH COLOR Portable Electric Lunch Box, please refer to the table below for common problems and solutions.
| Issue | Possible Cause | Solution |
|---|---|---|
| Food is not heating or indicator light is off | Not plugged in correctly No power to outlet Steam vent closed | Ensure both ends of the power cord are securely connected. Check the power outlet or vehicle's 12V socket for functionality. Open the steam vent on the lid during heating. |
| Heating is too slow | Insufficient heating time Food quantity/initial temperature | Allow more time for heating (30-60 minutes recommended). Larger portions or colder food require longer heating times. |
| Uneven heating or food drying out | Food not spread evenly Insufficient water for steam | Distribute food evenly in the container. Add 1-2 tablespoons of water to the bottom of the heating unit (under the stainless steel container) to generate steam for more even heating. |
| Plastic smell during first use | New product odor | This is normal for new appliances. Wash all removable parts thoroughly before first use. The smell should dissipate with subsequent uses. Ensure good ventilation. |
| Leakage from lunch box | Lid not properly sealed Steam vent cap not closed (after heating) | Ensure the lid is securely latched on all four sides. Close the steam vent cap before transporting the lunch box after heating. |
7. Product Specifications
| Model: | YWLB22E |
| Brand: | COOK WITH COLOR |
| Material: | Plastic, Stainless Steel |
| Capacity: | 1.5 Liters |
| Power: | Dual Use (12V DC for Car/Truck, 110V AC for Home/Office) |
| Dimensions: | Approximately 9.57 x 6.77 x 4.37 inches |
| Item Weight: | 2.03 pounds |
| Number of Compartments: | 2 (main stainless steel, optional plastic insert) |
| Closure Type: | Latch |
| Special Features: | Leak Resistant, Lightweight, Portable, Thermal Insulated |
8. Warranty Information
For specific warranty details regarding your COOK WITH COLOR Portable Electric Lunch Box, please refer to the product packaging or contact COOK WITH COLOR customer support. It is recommended to retain your purchase receipt as proof of purchase for any warranty claims.
9. Customer Support
Should you require further assistance, have questions, or need to report any issues with your product, please contact COOK WITH COLOR customer support. Contact information can typically be found on the product packaging or the official COOK WITH COLOR website.





