Introduction
The THERMOS 12oz Stainless Steel Direct Drink Bottle is designed for convenient beverage transport and temperature retention. Utilizing THERMOS vacuum insulation technology, this bottle keeps beverages hot for up to 9 hours or cold for up to 18 hours. Its design includes a push-button lid with a locking ring for secure closure and a smooth-flow drinking spout for comfortable use. The bottle is also designed for easy cleaning, with dishwasher-safe components and a lid that disassembles for thorough washing.

Figure 1: THERMOS 12oz Stainless Steel Direct Drink Bottle (Stainless)
Features
- THERMOS Vacuum Insulation Technology: Provides maximum temperature retention for hot or cold beverages.
- Durable Stainless Steel Construction: Ensures longevity and resistance to corrosion.
- Sweat-Proof Exterior: Prevents condensation from forming on the outside of the bottle.
- Push Button Lid with Locking Ring: Securely seals the bottle to prevent spills and leaks.
- Smooth Flow Lid: Designed for comfortable and controlled drinking.
- Cup Holder Compatible: Fits most standard automobile cup holders for convenience on the go.
- Dishwasher Safe: For easy and hygienic cleaning.
- Disassemblable Lid Components: Allows for thorough cleaning of all lid parts.
Setup and First Use
- Unpack: Remove all packaging materials and labels from the bottle.
- Initial Cleaning: Before first use, wash all parts of the bottle and lid thoroughly with warm, soapy water. Rinse completely.
- Lid Assembly: Ensure all lid components are correctly assembled after cleaning. The smooth flow spout should be securely in place.
- Filling: Fill the bottle with your desired beverage. Do not overfill; leave space for the lid.
- Secure Lid: Screw the lid on tightly to ensure a leak-proof seal. Engage the locking ring to prevent accidental opening.
Operating Instructions
Opening the Lid
- Unlock: Slide the locking ring (typically a small lever or button) to the unlocked position.
- Press Button: Press the push button on the lid. The lid will spring open, revealing the drinking spout.

Figure 2: Lid in open position, ready for drinking.
Drinking
Once the lid is open, you can drink directly from the smooth-flow spout. The design helps control the flow of liquid for comfortable sipping.
Closing the Lid
- Close Lid: Push the lid down firmly until it clicks shut.
- Lock: Slide the locking ring back to the locked position to prevent accidental opening and ensure a secure seal.
Temperature Retention
- Keeps beverages hot for up to 9 hours.
- Keeps beverages cold for up to 18 hours.
- For best results with hot beverages, pre-heat the bottle with hot water for 5-10 minutes before filling.
- For best results with cold beverages, pre-chill the bottle with cold water for 5-10 minutes before filling.
Maintenance and Cleaning
Regular cleaning is essential to maintain hygiene and the performance of your THERMOS bottle.
Dishwasher Cleaning
- The bottle and lid components are dishwasher safe (top rack recommended).
- For thorough cleaning, disassemble the lid before placing it in the dishwasher.
Manual Cleaning
- Disassemble Lid: To disassemble the lid, press the tab set on the upper inside of the lid and press the drink spout down to remove the inside piece. Carefully separate all removable parts.
- Wash: Wash all parts with warm water and a mild dish soap. Use a bottle brush for the interior of the bottle and a small brush for intricate lid parts.
- Rinse: Rinse all components thoroughly with clean water.
- Dry: Allow all parts to air dry completely before reassembling to prevent odor or mildew.
- Reassemble: Carefully reassemble the lid components, ensuring all seals are properly seated.

Figure 3: Disassembled lid components for cleaning.
Troubleshooting
- Poor Temperature Retention:
- Ensure the lid is securely closed and the locking ring is engaged.
- Verify that the lid components are correctly assembled and the silicone gasket is properly seated.
- Pre-heat or pre-chill the bottle as recommended in the Operating Instructions.
- Leaking:
- Check that the lid is screwed on tightly and the locking ring is engaged.
- Inspect the silicone gasket and other lid components for any damage or misalignment. Replace if necessary.
- Ensure the bottle is not overfilled.
- Difficulty Opening/Closing Lid:
- Ensure the locking ring is fully disengaged before attempting to open the lid.
- Clean the lid components thoroughly to remove any residue that might be causing sticking.
Specifications
| Brand | THERMOS |
| Model Name | 12oz Stainless Steel Direct Drink Bottle, Stainless |
| Item Model Number | JNL350SS4 |
| Capacity | 12 ounces (approximately 355 ml) |
| Color | Stainless |
| Material | Stainless Steel |
| Product Dimensions | 3"W x 7"H |
| Item Weight | 8.8 ounces |
| Special Feature | Dishwasher Safe, Vacuum Insulated |
| Recommended Uses | Coffee, Tea, Water |
Warranty and Support
For detailed warranty information and customer support, please refer to the official THERMOS website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
Manufacturer: Thermos