Introduction
The Thermos Stainless King Travel Mug is engineered for superior temperature retention, keeping your beverages hot for up to 7 hours or cold for up to 18 hours. Featuring durable stainless steel construction and a leak-proof DrinkLock™ lid, this 470ml mug is designed for daily adventures, commuting, and outdoor activities. Its smart design includes a built-in tea hook and a condensation-free exterior for comfortable handling.

Image: The Thermos Stainless King Travel Mug in Gunmetal, showcasing its sleek design and handle.
Setup and First Use
Before initial use, and after each use, follow these cleaning instructions to ensure optimal performance and hygiene.
Cleaning Instructions:
- Wash all parts with warm water and mild dish soap.
- Rinse thoroughly with clean water.
- Allow all parts to dry completely before reassembling or storing.
- While the mug is durable, hand washing is recommended to preserve the finish and integrity of the vacuum seal. The lid is top-rack dishwasher safe.
Pre-conditioning for Temperature Retention:
- For Hot Beverages: Pre-heat the mug by filling it with hot water for 5-10 minutes. Empty the hot water before adding your desired hot beverage.
- For Cold Beverages: Pre-cool the mug by filling it with cold water or ice for 5-10 minutes. Empty the cold water/ice before adding your desired cold beverage.
Operating Instructions
Filling the Mug:
- Unscrew the DrinkLock™ lid by turning it counter-clockwise.
- Fill the mug with your desired beverage, ensuring not to overfill. Leave approximately 1 inch (2.5 cm) of space from the top to allow for the lid and prevent spills.
- Securely screw the lid back on by turning it clockwise until tight.
Using the DrinkLock™ Lid:
The DrinkLock™ lid features a rotating mechanism to open and close the drinking spout, ensuring a leak-proof seal when closed.
- To open the spout for drinking, rotate the central lever to the "OPEN" position. You can drink from either side of the spout.
- To close and seal the mug, rotate the central lever to the "CLOSE" position. This will prevent leaks and maintain temperature.

Image: Detailed view of the DrinkLock™ lid, showing the open/close mechanism and the built-in tea hook.
Using the Built-in Tea Hook:
The lid includes a convenient built-in tea hook, perfect for holding tea bags or most loose leaf infusers.
- Simply attach your tea bag string or infuser chain to the hook located on the underside of the lid before screwing it onto the mug.
Maintenance and Care
Proper care will extend the life and performance of your Thermos Stainless King Travel Mug.
Daily Cleaning:
- Wash the mug and lid immediately after each use.
- For thorough cleaning of the lid, disassemble it by unscrewing the top portion. Wash all components separately.
- Rinse thoroughly and allow to air dry completely before reassembling.
Deep Cleaning (Periodically):
- For stubborn stains or odors, use a mixture of warm water and a tablespoon of baking soda. Let it soak for several hours or overnight.
- Clean with a bottle brush if necessary.
- Rinse thoroughly.
Important Notes:
- Do not use abrasive cleaners, scrubbers, or bleach, as these can damage the finish and internal components.
- Do not place in a microwave or oven.
- Do not freeze the mug.
- Ensure the lid is properly assembled and securely tightened to prevent leaks.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Beverage not staying hot/cold | Lid not sealed properly; Mug not pre-conditioned; Extreme external temperatures. | Ensure lid is tightly closed and the DrinkLock™ lever is in the "CLOSE" position. Pre-condition the mug with hot/cold water before use. Avoid leaving the mug in extreme temperatures (e.g., direct sunlight, freezing car). |
| Mug is leaking | Lid not tightened; DrinkLock™ lever in "OPEN" position; Lid seal damaged or missing. | Tighten the lid securely. Ensure the DrinkLock™ lever is in the "CLOSE" position. Check the silicone seal on the lid for proper placement and any damage. Replace if necessary. |
| Difficulty cleaning lid | Food/beverage residue buildup. | Disassemble the lid completely for thorough cleaning. Use a small brush for hard-to-reach areas. Soak in warm soapy water or a baking soda solution. |
Specifications
| Brand | THERMOS |
| Model Name | SK1000 |
| Item Model Number | 170011 |
| Capacity | 0.47 Liters (16 ounces) |
| Color | Gunmetal |
| Material | Stainless Steel |
| Hot Retention | Up to 7 hours |
| Cold Retention | Up to 18 hours |
| Product Dimensions | 4.61"W x 7.6"H (approx. 11.7cm W x 19.3cm H) |
| Item Weight | 0.45 Kilograms (15.7 ounces) |
| Special Features | Vacuum Insulated, Leakproof, BPA Free, Built-in Tea Bag Hook, Fits most vehicle cup holders |

Image: Diagram showing the dimensions of the Thermos Stainless King Travel Mug.
Warranty and Support
The Thermos Stainless King Travel Mug is backed by a 5-year guarantee, reflecting the brand's commitment to quality and durability.
For warranty claims, product support, or any inquiries, please visit the official THERMOS website or contact their customer service directly. Keep your proof of purchase for warranty validation.
Visit the THERMOS Store on Amazon for more information.