1. Product Overview
The THERMOS JMF-500 BK is a 0.47-liter stainless steel vacuum insulated mug designed for superior temperature retention. Its durable construction and ergonomic handle make it suitable for various beverages and activities.
- High Vacuum Insulation: Maintains beverage temperature for extended periods.
- Food Safe & BPA Free: Constructed from safe materials for your health.
- High Standard Quality: Built for durability and reliable performance.
- Stainless Steel SUS 304: Ensures resistance to corrosion and maintains purity of contents.
Image 1: The THERMOS JMF-500 BK mug shown with its retail packaging, highlighting its design and the included handle.
2. Setup and First Use
- Unpack: Carefully remove the mug and all components from the packaging.
- Initial Cleaning: Before first use, wash the mug, lid, and any removable parts thoroughly with warm water and mild dish soap. Rinse completely.
- Dry: Ensure all parts are completely dry before assembly or storage to prevent odors or mildew.
3. Operating Instructions
Image 2: The THERMOS JMF-500 BK mug with its screw cap removed, showing the wide opening for easy filling and cleaning.
- Pre-heating/Pre-cooling (Optional): For maximum temperature retention, pre-heat with hot water or pre-cool with cold water for 5-10 minutes before filling with your desired beverage. Empty the pre-heating/pre-cooling water before use.
- Filling: Fill the mug with your beverage. Do not overfill; leave approximately 1 inch (2.5 cm) of space from the top to allow for the lid and prevent spills.
- Sealing: Securely screw on the cap until it is tight. Ensure the gasket is properly seated to prevent leaks.
- Usage: The mug is suitable for Tea, Coffee, Soup, Water, and other beverages. It is ideal for outdoor activities, long commutes, office use, and traveling.
Important Safety Notes:
- Do not use with carbonated beverages, as pressure buildup can cause the lid to eject forcefully.
- Keep out of reach of children when containing hot liquids.
- Do not place in microwave, oven, or freezer.
4. Maintenance and Care
Proper care ensures the longevity and performance of your THERMOS mug.
- Cleaning: Hand wash only. Wash immediately after each use. Use a soft brush or sponge with warm water and mild dish soap. Do not use abrasive cleaners, scrubbers, or bleach.
- Drying: Air dry thoroughly with the lid removed to prevent moisture buildup and odors.
- Storage: Store with the lid removed or slightly ajar to allow air circulation.
- Gasket Care: Periodically check the lid gasket for wear or damage. Ensure it is clean and properly seated for optimal sealing.
Do NOT:
- Place in a dishwasher.
- Submerge the entire mug in water for extended periods.
- Use harsh chemicals or solvents.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Liquid leaks from lid. | Lid not securely tightened; gasket improperly seated or damaged; mug overfilled. | Ensure lid is tightly screwed on. Check gasket for proper placement and condition. Do not overfill the mug. |
| Poor temperature retention. | Mug not pre-heated/pre-cooled; lid not sealed properly; extreme external temperatures. | Pre-heat or pre-cool the mug before use. Ensure lid is securely sealed. Avoid leaving the mug in extreme hot or cold environments for prolonged periods. |
| Unpleasant odor inside mug. | Improper cleaning or drying; residue from previous beverages. | Wash thoroughly with warm water and baking soda solution. Rinse well and air dry completely with lid off. |
6. Specifications
- Brand: THERMOS
- Model Number: JMF-500 BK
- Capacity: 0.47 Liters
- Material: Stainless Steel (SUS 304)
- Color: Black (Handle and base accents)
- Item Weight: 449 g
- Cap Type: Screw Cap
- Product Care: Hand Wash Only
7. Warranty and Support
THERMOS products are manufactured to high-quality standards. For any questions regarding your product, warranty claims, or technical support, please contact THERMOS customer service directly. Please retain your proof of purchase for warranty purposes.
For more information, visit the official THERMOS website or contact your local distributor.
