Important Safety Instructions
- Always unplug the device when not in use or before cleaning.
- Do not immerse the heating plate or electrical components in water or other liquids.
- Exercise caution as the heating plate and surrounding areas can become very hot during operation. Avoid direct contact.
- Use only sealed, flat-bottomed, oven-safe containers made of glass, metal, ceramic, or aluminum foil. Plastic containers should be used with caution and at lower temperature settings.
- Keep out of reach of children and pets.
- Ensure proper ventilation when operating the device.
- Do not use if the power cord or plug is damaged. Contact customer support for assistance.
Product Overview
The ROTTOGOON Portable Mini Oven Food Warmer is designed for convenient meal heating and cooking on the go. It features an intelligent adjustable temperature with a digital display, allowing precise control over your food's temperature. Utilizing advanced conduction heat technology, it ensures even cooking and reheating while preserving moisture and freshness.
This versatile device supports multiple power inputs: 12V and 24V for vehicle use (car, truck) and 110V-240V for standard wall outlets (office, home, hotel). Its compact and portable design makes it ideal for road trips, camping, picnics, or daily office use.

Image: The ROTTOGOON Portable Mini Oven Food Warmer, showcasing its compact design and digital temperature display.
Package Contents
- 1 x ROTTOGOON Portable Mini Oven Food Warmer (Insulated Bag with Heating Plate)
- 1 x 12V/24V Car Power Cable
- 1 x 110V-240V Wall Power Cable
- 1 x Adjustable Shoulder Strap
- 1 x User Manual
Setup
- Unpack all components from the packaging.
- Place the heating plate securely inside the insulated bag, ensuring it lies flat at the bottom.
- Connect the appropriate power cable (12V/24V for car or 110V-240V for wall outlet) to the designated port on the side of the heating plate.
- If using the shoulder strap, attach it to the loops on the insulated bag.

Image: The portable oven with both 12V/24V car and 110V-240V wall power cables, illustrating its versatile power options.
Operating Instructions
General Operation
- Prepare your meal and place it in a sealed, flat-bottomed, oven-safe container.
- Insert the food container into the heated bag, ensuring it rests directly on the heating plate.
- Close the insulated bag securely to retain heat.
- Plug the power cable into the appropriate power source (car outlet or wall outlet).
- Long-press the power button on the digital display panel to turn on the device.
- Rotate the knob to adjust the desired temperature. The digital display will show the set temperature.
- Allow the food to heat or cook for the recommended time. The device features automatic temperature control, maintaining the set temperature without constant monitoring.
Heating Cooked Food
For reheating room-temperature meals, set the temperature between 140°F and 200°F. Heating typically takes 40-60 minutes. For frozen meals, allow 1-1.5 hours. The conduction heating ensures food retains moisture and freshness.
Cooking Raw Food
The oven can cook raw food. Set the temperature between 250°F and 275°F. Cooking times vary; for items like steak or chicken fillet, expect 1-1.5 hours. For best results, cut food into smaller, even pieces.

Image: Close-up of the digital display and temperature adjustment knob on the portable oven.
Video: Demonstration of using the ROTTOGOON Portable Mini Oven to heat food.
Compatible Containers
The ROTTOGOON Portable Mini Oven is compatible with most microwavable, flat-bottomed, and sealable containers. Recommended materials include:
- Glass
- Stainless Steel
- Ceramic
- Metal
- Aluminum Foil
- Cardboard
- Plastic (use with caution and at lower temperatures to prevent melting or warping)
The heated lunchbox accommodates containers up to 10.11” L x 7.08” W x 4.96” H.

Image: Illustration of various container types suitable for use with the portable oven.
Cleaning and Maintenance
- Always unplug the device and allow it to cool completely before cleaning.
- Wipe the heating plate with a damp cloth. Do not use abrasive cleaners or immerse it in water.
- Clean the interior of the insulated bag with a damp cloth and mild soap if necessary. Ensure it is completely dry before storage.
- Store the portable oven in a cool, dry place when not in use.
Troubleshooting
Device Not Heating
- Ensure the power cable is securely plugged into both the device and the power source.
- Verify that the power source (vehicle outlet or wall outlet) is functional.
- Check if the device is turned on by long-pressing the power button and if a temperature is set on the digital display.
Food Not Heating Evenly
- Ensure the food container has a flat bottom and is making full contact with the heating plate.
- Spread food evenly within the container for consistent heating.
- Increase heating time or adjust the temperature setting if needed.
- Ensure the insulated bag is fully zipped to prevent heat loss.
Specifications
| Model Number | HHJ-K-AC110-240/DC12/24 |
| Brand | ROTTOGOON |
| Capacity | 0.8 Liters |
| Voltage | 12V, 24V, 110V-240V |
| Product Dimensions | 7"L x 9"W x 11"H |
| Item Weight | 2.33 pounds (1.06 Kilograms) |
| UPC | 712490234307 |

Image: The portable oven with key dimensions highlighted for reference.
Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or contact ROTTOGOON directly through their official website or customer service channels. Keep your purchase receipt for warranty claims.