Introduction
Thank you for choosing the Nuvita 4455 Digital Baby Food and Liquid Thermos. This innovative thermos is designed to keep your baby's food and liquids at the desired temperature for extended periods, featuring an integrated LED display for real-time temperature monitoring. Constructed from high-quality 18/8 stainless steel with double-wall vacuum insulation, it ensures durability and optimal thermal performance. Please read this manual carefully before use to ensure safe and proper operation.
Safety Information
- Do not microwave: This thermos is made of stainless steel and is not safe for microwave use.
- Check temperature: Always verify the temperature of the contents before feeding your baby, especially hot liquids or food.
- Keep out of reach of children: Ensure the thermos is stored and used out of reach of infants and young children to prevent burns or other injuries.
- Avoid overfilling: Do not fill the thermos beyond the neck to prevent spills and ensure proper lid sealing.
- Handle with care: Avoid dropping or subjecting the thermos to strong impacts, which may damage the insulation or LED display.
- Lid battery: The LED display in the lid contains an integrated battery. Replacement lids are sold separately. Do not attempt to open or replace the battery yourself.
Product Components
The Nuvita 4455 thermos consists of the following main parts:
- Insulated Bottle Body: Double-walled 18/8 stainless steel construction.
- Smart Lid with LED Display: Features an integrated digital thermometer.
- Internal Filter: Removable stainless steel filter for infusions or separating solids.
- Silicone Bottom: Non-slip and scratch-resistant base.

This image illustrates the key components and dimensions of the Nuvita 4455 thermos, including the LED temperature display on the lid, the hermetic seal, and the 5.2 cm wide opening for easy cleaning.

The thermos with its lid and internal filter detached, highlighting the individual parts for assembly and cleaning.
Setup
- Initial Cleaning: Before first use, wash all parts of the thermos (bottle body, lid, and internal filter) with warm soapy water. Rinse thoroughly and allow to air dry completely.
- Assemble Filter (Optional): If using the internal filter, place it inside the bottle before adding contents.
Operating Instructions
Filling the Thermos
- Prepare Contents: Ensure liquids or food are at the desired temperature before pouring into the thermos.
- Pour Contents: Utilize the wide 5.2 cm opening to easily pour liquids or place solid food into the bottle. Do not overfill.
- Secure Lid: Screw the smart lid firmly onto the bottle to create a hermetic seal. This prevents leaks and helps maintain temperature.
Using the LED Temperature Display
The Nuvita 4455 features an intelligent LED temperature display integrated into the lid. To check the temperature of the contents:
- Tap the Lid: Gently tap the top surface of the lid. The LED screen will illuminate, displaying the current temperature of the liquid or food inside.
- Temperature Verification: Always check the displayed temperature before serving, especially for baby food, to ensure it is safe for consumption.

The LED display on the thermos lid shows the internal temperature, allowing for quick and easy verification.
Temperature Retention
The double-walled, vacuum-insulated stainless steel construction provides excellent thermal retention:
- Hot Liquids/Food: Keeps contents hot for up to 12 hours.
- Cold Liquids/Food: Keeps contents cold for up to 24 hours.

This diagram visually represents the thermos's ability to maintain hot temperatures for 12 hours and cold temperatures for 24 hours, with example temperature curves.
Maintenance and Cleaning
Proper cleaning and maintenance will extend the life of your Nuvita 4455 thermos.
- Hand Wash Only: All parts of the thermos should be hand washed with warm, soapy water. Do not use abrasive cleaners or scrubbers.
- Rinse Thoroughly: Ensure all soap residue is rinsed off.
- Air Dry: Allow all components to air dry completely before reassembling or storing to prevent odors and bacterial growth.
- Wide Opening: The 5.2 cm wide opening facilitates easy access for thorough cleaning.
- Lid Care: Wipe the lid with a damp cloth. Do not submerge the lid in water or place it in a dishwasher, as this may damage the electronic components.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| LED temperature display not working | Lid battery depleted or malfunction. | The battery in the lid is integrated and not user-replaceable. If the display stops working, a replacement lid may be required. Contact Nuvita customer support. |
| Thermos not retaining temperature | Lid not sealed properly; damaged vacuum insulation. | Ensure the lid is screwed on tightly. If the issue persists, the vacuum insulation may be compromised. Contact Nuvita customer support. |
| Leaking from lid | Lid not sealed properly; seal damaged. | Ensure the lid is screwed on tightly and the silicone seal is correctly positioned and free from damage. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | NUPPC0040 |
| Capacity | 500 Milliliters |
| Material | 18/8 Stainless Steel |
| Dimensions (L x W x H) | 12 x 9 x 10 cm |
| Item Weight | 310 Grams |
| Insulation Type | Double-wall vacuum insulation |
| Temperature Display | Integrated LED in lid |
| Microwave Safe | No |
| BPA, Phthalate, Lead Free | Yes |
Warranty and Support
Nuvita products are designed with care and backed by a commitment to quality.
- Warranty: This product comes with a 2-year warranty from the date of purchase.
- Customer Support: If you encounter any issues with your Nuvita 4455 thermos or have questions, please contact Nuvita customer service. Our professional team is ready to assist you.
- Contact Information: Please refer to the Nuvita official website or product packaging for the most up-to-date contact details.