Introduction
Thank you for choosing the Thermos Shuttle Chef Thermal Cooker, TCRA Series. This innovative appliance utilizes vacuum insulation technology to cook food efficiently by retaining heat, saving energy and time. This manual provides essential information for the safe and effective operation, maintenance, and care of your thermal cooker.
Safety Information
- Do not place the outer thermal pot directly on a stovetop or any heating element. The outer pot is designed for heat retention only.
- Always handle the inner pots with caution, especially after heating, as they will be extremely hot. Use oven mitts or heat-resistant gloves.
- Ensure the lid is securely closed on both the inner pot and the outer thermal pot to maintain heat and prevent spills.
- Keep out of reach of children when in use or when containing hot food.
- Do not immerse the outer thermal pot in water. Clean with a damp cloth.
- Avoid dropping the thermal cooker, as this may damage the vacuum insulation and impair its performance.
Components
The Thermos Shuttle Chef TCRA Series consists of the following main components:
- Outer Thermal Pot: The insulated exterior unit with a handle and lid, designed to retain heat.
- Inner Cooking Pots (2 x 3.0L): Two stainless steel pots used for initial cooking on a stovetop.
- Inner Pot Lids: Lids for the individual inner cooking pots.

Figure 1: Front view of the Thermos Shuttle Chef Thermal Cooker, showing the outer pot with its handle and lid.
Setup
- Unpacking: Carefully remove all components from the packaging. Retain packaging for future storage or transport if needed.
- Initial Cleaning: Before first use, wash the inner cooking pots and their lids with warm soapy water, then rinse thoroughly and dry. Wipe the exterior of the outer thermal pot with a damp cloth. Do not immerse the outer pot in water.
- Assembly: Place the clean, dry inner cooking pots into the outer thermal pot. Ensure they fit snugly.
Operating Instructions
The Shuttle Chef operates on the principle of thermal cooking, where food is brought to a boil on a stovetop in the inner pot, then transferred to the insulated outer pot to continue cooking without external heat.
- Prepare Food: Place your ingredients into one or both of the inner cooking pots.
- Initial Heating: Place the inner cooking pot(s) directly onto a stovetop burner. Bring the contents to a boil and simmer for the recommended time as per your recipe (typically 5-15 minutes, depending on the food). Ensure the food is thoroughly heated through.
- Transfer to Outer Pot: Carefully remove the hot inner cooking pot(s) from the stovetop using oven mitts. Place the inner pot(s) into the outer thermal pot.
- Seal: Securely close the lid of the outer thermal pot. Ensure it is properly sealed to maximize heat retention.
- Thermal Cooking: Allow the food to cook passively within the insulated outer pot for the duration specified in your recipe. The vacuum insulation will maintain the cooking temperature for an extended period.
- Serve: Once cooking is complete, carefully open the outer pot and remove the inner pot(s). Serve food directly from the inner pot or transfer to serving dishes.
Cleaning and Maintenance
- Inner Pots: The stainless steel inner pots and their lids are dishwasher safe. For hand washing, use warm soapy water and a non-abrasive sponge. Rinse thoroughly and dry completely to prevent water spots.
- Outer Thermal Pot: Wipe the exterior of the outer pot with a soft, damp cloth. For stubborn stains, use a mild detergent solution. Do not immerse the outer pot in water or place it in a dishwasher, as this can damage the vacuum insulation.
- Lids: Ensure all lids are clean and dry before storage.
- Storage: Store the thermal cooker in a clean, dry place. It is recommended to store the outer pot with its lid slightly ajar to allow air circulation and prevent odors.
Troubleshooting
- Food not cooking thoroughly: Ensure the food was brought to a vigorous boil and simmered for the recommended time on the stovetop before transferring to the outer pot. The outer pot must be sealed immediately after transfer to retain maximum heat.
- Heat loss: Verify that the outer pot lid is securely closed and sealed. Avoid frequently opening the lid during the thermal cooking process, as this releases heat.
- Outer pot feels warm: The outer pot should remain cool to the touch. If it feels warm, the vacuum insulation may be compromised. Contact customer support if this occurs.
Specifications

Figure 2: Dimensions of the Thermos Shuttle Chef Thermal Cooker.
| Feature | Detail |
|---|---|
| Brand | THERMOS |
| Model Number | TCRA |
| Capacity | 6 Liters (2 x 3.0L inner pots) |
| Material | Stainless Steel |
| Finish Type | Uncoated |
| Color | Silver |
| Product Dimensions | 10.5"D x 10"W x 11"H |
| Item Weight | 12.5 pounds (5.68 Kilograms) |
| Is Oven Safe | Yes (Inner pots only) |
| Is Suitable For Stovetop | No (Outer pot); Yes (Inner pots) |
| Manufacture Year | 1989 (Original design introduction) |
Warranty and Support
For warranty information, product support, or to inquire about replacement parts, please refer to the official Thermos website or contact Thermos customer service directly. Keep your purchase receipt as proof of purchase.





