Nostalgia NLB25BB
Nostalgia Portable 2.5 Cup Electric Heated Lunch Box NLB25BB Instruction Manual
Model: NLB25BB
Introduction
Thank you for choosing the Nostalgia Portable 2.5 Cup Electric Heated Lunch Box. This appliance is designed to provide a convenient way to heat your meals on the go, allowing you to enjoy warm food wherever an electrical outlet is available. Please read this manual thoroughly before first use to ensure safe operation and optimal performance.
This portable heated lunch box features a 2.5 cup capacity, a leak-proof silicone-sealed lid, a foldable carry handle, and a detachable power cord for easy transport and use. The removable stainless steel food container simplifies cleaning.

This image displays the Nostalgia Portable Electric Heated Lunch Box in black, with its lid open to reveal a meal inside the removable stainless steel container. Smaller images of the lunch box in blue, green, and white are also visible.
Setup and Component Identification
Unpacking
- Carefully remove all components from the packaging.
- Remove any protective films or packaging materials.
- Inspect the appliance for any damage. Do not use if damaged.
Initial Cleaning
Before first use, wash the removable food container and its lid with warm, soapy water. Rinse thoroughly and dry completely. Wipe the exterior of the warming base with a damp cloth. Do not immerse the warming base in water.
Component Overview

An exploded diagram illustrating the various components of the Nostalgia Portable Heated Lunch Box. Key parts include the outer lid with a foldable handle, the leak-proof inner lid, the removable stainless steel food container, the warming base, and the power indicator light. The diagram also highlights the 2.5 cup capacity and that the food container is dishwasher safe.
- Lid with Carrying Handle: The outer lid with a foldable handle for easy transport.
- Leak Proof Lid: The inner lid that seals the food container to prevent spills.
- Food Container: The removable stainless steel container for your meal.
- Warming Base: The main unit containing the heating element.
- Indicator Light: Illuminates when the unit is powered on and heating.
- Detachable Power Cord: For connecting the unit to an electrical outlet.
Operating Instructions
Preparing Your Meal
- Place your prepared food into the removable stainless steel food container. The maximum capacity is 2.5 cups (20 ounces).
- Securely place the leak-proof lid onto the food container. Ensure it is properly sealed to prevent spills.
- Place the sealed food container into the warming base.
- Close the outer lid with the carrying handle, ensuring the locking clamps are engaged for secure transport.

A three-panel image demonstrating the use of the heated lunch box. The first panel shows food being placed into the container, the second shows a hand carrying the lunch box by its foldable handle, and the third shows the detachable power cord being plugged into the unit.
Heating Your Food
- Connect the detachable power cord to the warming base and then plug it into a standard electrical outlet.
- The indicator light on the front of the warming base will illuminate, indicating that the unit is powered on and heating.
- Allow approximately 30-60 minutes for your food to heat thoroughly. Heating time may vary depending on the type and quantity of food, as well as its initial temperature. For best results, plug in the unit a few hours before mealtime.
- Once your food is heated to your desired temperature, unplug the unit from the electrical outlet.
- Carefully open the outer lid and remove the food container. Be cautious as the container and its contents will be hot.
- Enjoy your warm meal.
Important Safety Notes
- Do not immerse the warming base in water or any other liquid.
- Always unplug the unit when not in use and before cleaning.
- Keep out of reach of children.
- Ensure the power cord is not damaged and is placed away from hot surfaces.
- This appliance is designed for heating pre-cooked food. It is not intended for cooking raw food.
Care and Maintenance
Cleaning
- Always unplug the unit and allow it to cool completely before cleaning.
- Removable Food Container and Lid: These parts are dishwasher safe. Alternatively, wash them by hand with warm, soapy water, rinse thoroughly, and dry completely.
- Warming Base: Wipe the exterior of the warming base with a damp cloth. Do not use abrasive cleaners or scouring pads, as these can damage the surface. Never immerse the warming base in water.

The removable stainless steel food container and its lid are shown inside a dishwasher, illustrating that these components are safe for machine washing.
Storage
Ensure all parts are clean and dry before storing. Store the lunch box in a cool, dry place, away from direct sunlight and moisture. The detachable cord can be stored separately or with the unit.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not heat or indicator light is off. | Not plugged in correctly. Power outlet is not working. Damaged power cord. | Ensure the power cord is securely plugged into both the unit and a working electrical outlet. Check the circuit breaker. If the cord is damaged, discontinue use and contact customer support. |
| Food is not hot enough. | Insufficient heating time. Food quantity too large. Food was frozen. | Allow more time for heating (30-60 minutes is typical). Reduce food quantity. Ensure food is thawed before heating for best results. |
| Food leaks from the container. | Inner lid not sealed properly. Outer lid clamps not engaged. | Ensure the leak-proof inner lid is firmly pressed onto the food container. Verify that the outer lid's locking clamps are securely fastened. |
| Difficulty cleaning the food container. | Food residue is stuck or burned on. | Pre-soak the container in warm, soapy water. Use a non-abrasive sponge or brush. The container is dishwasher safe for thorough cleaning. |
Product Specifications
| Feature | Detail |
|---|---|
| Model Number | NLB25BB |
| Brand | Nostalgia |
| Capacity | 2.5 Cups (20 Ounces) |
| Material | Stainless Steel (Food Container) |
| Color | Black |
| Product Dimensions | 6.1"L x 6.1"W x 4.7"H |
| Item Weight | 1.74 pounds |
| Special Feature | Leak Resistant, Detachable Cord |
| Care Instructions | Dishwasher Safe (Removable Container) |
| UPC | 810140673039 |
Warranty Information
Nostalgia products are manufactured with a commitment to quality. This product is covered by a limited warranty against defects in material and workmanship under normal household use. Specific warranty terms and duration may vary. Please refer to the warranty card included with your purchase or visit the official Nostalgia website for detailed information.
Customer Support
For further assistance, product registration, or to inquire about replacement parts, please visit the official Nostalgia website or contact their customer service department. You can also find more information and products at the Nostalgia Store on Amazon.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.