Introduction
This manual provides essential instructions for the safe and effective use, care, and maintenance of your THERMOS FUNTAINER 16 oz Insulated Food Jar, Model F31101BK6. Please read all instructions carefully before first use and retain for future reference.
Setup and First Use
- Unpack: Carefully remove all packaging materials and inspect the food jar for any damage.
- Initial Cleaning: Before first use, wash all parts of the food jar and the folding spoon with warm water and mild dish soap. Rinse thoroughly.
- Pre-heating for Hot Foods: For maximum thermal efficiency with hot foods, pre-heat the food jar by filling it with hot tap water. Attach the lid, let it stand for five to ten minutes, then empty the water.
- Pre-cooling for Cold Foods: For maximum thermal efficiency with cold foods, pre-cool the food jar by filling it with cold tap water. Attach the lid, let it stand for five to ten minutes, then empty the water.

Image: The THERMOS FUNTAINER 16 oz food jar, highlighting its compact design, integrated spoon storage, leak-proof seal, and vacuum insulation that keeps food hot for 7 hours and cold for 9 hours. It is also BPA-free.
Operating Instructions
Filling the Food Jar:
- Prepare Food: Ensure food is at the desired temperature (hot or cold) before placing it into the pre-heated or pre-cooled food jar.
- Fill: Fill the food jar with your meal. The wide mouth design facilitates easy filling.
- Secure Lid: Place the lid securely onto the food jar and twist until it is tightly sealed to prevent leaks and maintain temperature.
Using the Folding Spoon:
- Access Spoon: Open the lid of the food jar. The folding spoon is conveniently stored within the lid compartment.
- Unfold Spoon: Gently unfold the spoon until it locks into place, ready for use.
- Fold and Store: After use, fold the spoon back into its compact form and store it in the lid compartment.

Image: Close-up of the THERMOS FUNTAINER food jar showing its easy-fill wide mouth, the included folding spoon, and indicating it is dishwasher safe.

Image: The THERMOS FUNTAINER food jar on a table, demonstrating its ability to keep foods hot for 7 hours and cold for 9 hours, ensuring meals are enjoyed at the preferred temperature.
Product Demonstration Video:
Video: This video demonstrates the THERMOS FUNTAINER food jar, showing how to open the lid, retrieve and unfold the integrated spoon, and close the jar securely. It highlights the convenience of the built-in spoon and the ease of use for children.
Care and Maintenance
Cleaning:
- Dishwasher Safe: The THERMOS FUNTAINER food jar is designed to be dishwasher safe for convenient cleaning. Place all components on the top rack of your dishwasher.
- Hand Washing: For best results and to prolong the life of your product, hand washing with warm water and mild dish soap is recommended. Use a soft brush for thorough cleaning of the interior.
- Drying: Ensure all parts are completely dry before reassembling or storing to prevent odor or mildew.
Storage:
- Store the food jar with the lid removed or slightly ajar to allow air circulation.
- Keep the food jar in a dry place away from direct sunlight when not in use.
Troubleshooting
- Food Not Staying Hot/Cold:
- Ensure the lid is tightly sealed.
- Verify that the food jar was properly pre-heated or pre-cooled before filling.
- Avoid opening the lid frequently, as this can reduce thermal efficiency.
- Leaking:
- Check that the lid is securely fastened and aligned correctly.
- Inspect the silicone gasket for any damage or misalignment. Ensure it is properly seated.
- Difficulty Opening/Closing Lid:
- Ensure the lid and threads are clean and free of food debris.
- Do not over-tighten the lid.
Specifications
| Brand | THERMOS |
| Model Number | F31101BK6 |
| Capacity | 16 Ounces (453 grams) |
| Material | Stainless Steel |
| Color | Matte Black |
| Dimensions (L x W x H) | 9.45 x 9.45 x 16.89 cm |
| Weight | 272 grams |
| Special Features | Vacuum insulation, Leak-proof, Dishwasher safe, Keeps hot or cold, Lightweight, Wide mouth, Integrated folding spoon |
| Recommended Age Range | Child |
Warranty Information
THERMOS products are manufactured to the highest quality standards and are backed by a limited warranty. For specific warranty details and terms, please refer to the warranty card included with your product or visit the official THERMOS website.
Customer Support
Should you have any questions, require assistance, or need to report an issue with your THERMOS FUNTAINER food jar, please contact THERMOS customer support. Contact information can typically be found on the product packaging or on the official THERMOS website.





