Product Overview
This Thermos JEB-500 NB Vacuum Insulated Soup Jar is designed to keep your food hot or cold for extended periods. It features a double-walled stainless steel construction for optimal temperature retention and is designed for ease of use and cleaning. Its compact size and robust design make it ideal for daily use, whether for work, school, or outdoor activities.

The Thermos JEB-500 NB Vacuum Insulated Soup Jar, 16.9 fl oz (500 ml), in Navy Blue. This image shows the complete product with its lid.
Parts List
The Thermos JEB-500 NB consists of several key components designed for functionality and easy cleaning:
- Body: Stainless steel (with acrylic resin coating)
- Outer Lid: Polypropylene (with foam polypropylene inside)
- Inner Lid: Polypropylene
- Valve Washer: Silicone rubber
- Seal Washer: Silicone rubber

An exploded view of the Thermos JEB-500 NB soup jar, illustrating its main components: the body, inner lid, and outer lid. This design allows for thorough cleaning.

A detailed breakdown of the Thermos JEB-500 NB soup jar's components, including the main body, inner lid, and outer lid. The inner lid features a water drainage hole to prevent water retention after washing.
Setup
Before first use, and after each use, ensure all parts are thoroughly cleaned.
- Disassemble all parts: outer lid, inner lid, and body.
- Wash all components with warm, soapy water. The entire unit is dishwasher safe.
- Rinse thoroughly and allow to air dry completely before reassembling.
- For optimal temperature retention, pre-heat or pre-chill the jar. Fill the jar with hot water (for hot food) or cold water/ice (for cold food) for 5-10 minutes, then empty before adding your food.
Operating Instructions
Filling the Jar
After pre-heating/pre-chilling, fill the jar with your desired hot or cold food. Do not overfill.
Sealing the Jar
- Place the inner lid onto the body and twist to secure.
- Place the outer lid over the inner lid and twist clockwise until it is firmly closed. The click-open construction helps release pressure when opening.

This diagram illustrates the two-step click-open mechanism of the lid. Step 1 shows a slight turn to release internal pressure, and Step 2 shows further turning to fully open the lid.
Opening the Jar
To open, turn the outer lid slightly counter-clockwise until you hear a click, which releases internal pressure. Continue turning to fully remove the lid. The outer lid can also be used as a serving bowl.

A close-up view highlighting the rounded mouth design of the Thermos JEB-500 NB soup jar, which is designed for comfortable eating directly from the container.
Cleaning and Maintenance
Proper cleaning ensures hygiene and extends the life of your soup jar.
- All parts of the JEB-500 NB are dishwasher safe.
- For manual cleaning, disassemble all parts. Wash with warm water and mild dish soap.
- The inner lid is designed with a water drainage hole to prevent water from remaining after washing, ensuring thorough drying and preventing mold.
- Ensure all silicone washers are properly seated after cleaning to maintain the leak-proof seal.
- Do not use abrasive cleaners or scrubbers as they may damage the finish.
Troubleshooting
Food Not Staying Hot/Cold
- Ensure the lid is securely tightened.
- Verify that the silicone washers are correctly in place and not damaged.
- Always pre-heat or pre-chill the jar with hot or cold water for 5-10 minutes before adding food.
Difficulty Opening Lid
- The click-open mechanism is designed to release pressure. Turn the outer lid slightly counter-clockwise until you hear a click before fully unscrewing.
- If the lid is still difficult to open, try running warm water over the lid for a few minutes to expand the material slightly.
Specifications
- Model Number: JEB-500 NB
- Capacity: 16.9 fl oz (500 ml)
- Dimensions (W x D x H): Approx. 4.1 x 4.1 x 5.3 inches (10.5 x 10.5 x 13.5 cm)
- Weight: Approx. 10.6 oz (300 g)
- Material:
- Body: Stainless steel (acrylic resin coating)
- Outer Lid: Polypropylene (foam polypropylene inside)
- Inner Lid: Polypropylene
- Valve Washer: Silicone rubber
- Seal Washer: Silicone rubber
- Heat Retention: Over 144°F (61°C) for 6 hours
- Cold Retention: Under 44°F (11°C) for 6 hours
- Dishwasher Safe: Yes (All parts)
- Microwaveable: No
- Country of Origin: Malaysia
Warranty and Support
For warranty information or product support, please refer to the official Thermos website or contact their customer service directly. Keep your purchase receipt as proof of purchase.





