THERMOS JEF-500 Vacuum Insulated Soup Jar User Manual

Introduction

Thank you for choosing the THERMOS JEF-500 Vacuum Insulated Soup Jar. This manual provides essential information for the safe and efficient use, maintenance, and care of your soup jar. Please read it thoroughly before first use and keep it for future reference.

The JEF-500 features a unique integrated seal structure for easy cleaning and is designed for both hot and cold insulation. All parts are dishwasher safe, ensuring convenient maintenance.

Figure 1: THERMOS JEF-500 Vacuum Insulated Soup Jar in Misty Blue, highlighting its 500ml capacity and hot & cold insulation features.

Product Components

The THERMOS JEF-500 Soup Jar consists of the following main parts:

• Body: The main insulated container.
• Outer Lid: The external screw-on lid.
• Inner Lid / Integrated Seal Unit: This unit combines the inner lid and the sealing gasket for simplified cleaning.

Figure 2: Exploded view showing the main components of the soup jar: the body, outer lid, and the integrated inner lid with seal.

Setup and First Use

1. Unpacking: Remove all packaging materials and labels from the soup jar.
2. Initial Cleaning: Before first use, wash all components (body, outer lid, and inner lid/seal unit) thoroughly with warm water and mild dish soap. Rinse well.
3. Drying: Ensure all parts are completely dry before assembly.
4. Assembly:
   • Place the integrated inner lid/seal unit onto the body opening.
   • Screw the outer lid firmly onto the body until secure.

Operating Instructions

For Hot Foods:

1. Pre-heating (Recommended): For best heat retention, pre-heat the jar by filling it with hot water (not boiling) for 5-10 minutes. Empty the hot water before adding food.
2. Filling: Pour your hot food into the jar. Do not overfill; leave a small space below the rim to allow for lid closure and prevent spills.
3. Sealing: Securely attach the integrated inner lid/seal unit, then screw on the outer lid tightly to ensure an airtight seal.
4. Retention: The jar maintains food temperature above 144.0°F (62°C) for up to 6 hours.

For Cold Foods:

1. Pre-cooling (Recommended): For best cold retention, pre-cool the jar by filling it with cold water or ice for 5-10 minutes. Empty before adding food.
2. Filling: Place your cold food into the jar. Do not overfill.
3. Sealing: Securely attach the integrated inner lid/seal unit, then screw on the outer lid tightly to ensure an airtight seal.
4. Retention: The jar maintains food temperature below 54.3°F (11°C) for up to 6 hours.

The jar features a round mouth design for comfortable eating directly from the container.

Figure 3: Detail showing the integrated seal unit for easy cleaning and the comfortable round mouth of the soup jar.

Maintenance and Cleaning

Proper cleaning and maintenance will extend the life of your THERMOS soup jar and ensure optimal performance.

• Dishwasher Safe: All parts of the JEF-500 soup jar are dishwasher safe. Place components on the top rack for best results.
• Hand Washing: If hand washing, disassemble the outer lid and the integrated inner lid/seal unit from the body. Wash all parts with warm, soapy water using a soft sponge or brush. Rinse thoroughly.
• Integrated Seal Unit: The inner lid and seal are integrated into one unit, simplifying disassembly and cleaning. This design minimizes crevices where food particles can accumulate.
• Drying: Allow all parts to air dry completely before reassembling and storing to prevent odors and mildew.

Figure 4: Illustration detailing the dishwasher-safe feature and the simple disassembly of the lid components for thorough cleaning.

Troubleshooting

• Food not staying hot/cold:
  • Ensure the lids are screwed on tightly to create a proper seal.
  • Verify that the integrated seal unit is correctly seated.
  • Confirm pre-heating or pre-cooling steps were followed.
  • Avoid opening the jar frequently, as this reduces temperature retention.
• Lid difficult to open:
  • A vacuum may form inside. Try twisting the outer lid firmly. If still stuck, run warm water over the outer lid for a few seconds to expand it slightly.
• Unpleasant odors:
  • Ensure all parts are thoroughly cleaned and dried after each use.
  • For persistent odors, a mixture of baking soda and water can be used for soaking, followed by thorough rinsing.

Specifications

Safety Information

• Do not use in a microwave oven, conventional oven, or on a stovetop.
• Do not place in a freezer, as this may damage the vacuum insulation.
• Do not overfill the jar, especially with hot liquids, to prevent spills and burns.
• Keep out of reach of children when containing hot food.
• Avoid dropping or subjecting the jar to strong impacts, which can compromise its insulation performance.
• Do not use for carbonated beverages or dry ice, as pressure buildup can cause the lid to eject forcefully.
• Do not use for dairy products or baby food for extended periods, as bacterial growth can occur.

Warranty and Support

For warranty information or customer support, please refer to the official THERMOS website or contact your local retailer. Keep your purchase receipt as proof of purchase.

Official THERMOS Website: www.thermos.com