Important Safeguards
When using electrical appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons. Read all instructions carefully before using this toaster oven.
- Hot Surfaces: The exterior surfaces of the toaster oven become very hot during and after operation. Always use oven mitts or gloves when touching hot surfaces or handling hot items.
- Placement: Ensure adequate air circulation around the appliance. Do not place the toaster oven directly under cabinets or near combustible materials. Maintain a minimum clearance of 4 inches (10 cm) on all sides and above the appliance.
- Electrical Safety: Do not immerse the cord, plug, or appliance in water or other liquids. Do not operate any appliance with a damaged cord or plug.
- Children: This appliance is not intended for use by children. Close supervision is necessary when any appliance is used near children. Keep the appliance and its cord out of reach of children.
- Unattended Operation: Never leave the toaster oven unattended during operation.
- Proper Use: Do not use the appliance for anything other than its intended use. Do not place oversized foods or metal utensils in the toaster oven as they may create a fire or risk of electric shock.
- Accessories: Only use accessories recommended by the manufacturer. Non-approved accessories may cause hazards.
Product Overview
The Mueller Austria MT-175 is a compact 4-slice toaster oven designed for versatility in your kitchen. It features Toast, Bake, and Broil functions, an adjustable temperature range, and a 30-minute timer with an auto shut-off for safety. Its 1100 watts of power ensure quick warm-up and efficient cooking.

Image: The Mueller Austria MT-175 4-Slice Toaster Oven, showcasing its stainless steel finish and compact design.
Key Features:
- Capacity: Accommodates up to 4 slices of bread, a 9-inch personal pizza, or various small dishes.
- Functions: Toast, Bake, Broil, and Warm.
- Temperature Control: Adjustable from 150°F to 450°F (65°C to 230°C).
- Timer: 30-minute timer with an automatic shut-off feature and a 'Stay On' option for longer cooking times.
- Power: 1100 Watts for efficient heating.
Components:
- Toaster Oven Unit
- Baking/Broiling/Drip Pan
- Wire Rack
- Crumb Tray (integrated)

Image: Visual representation of the toaster oven's dimensions: approximately 14.84 inches wide, 8.86 inches high (to top of main body), and 11.85 inches deep (including handle).
Before First Use
- Unpack: Carefully remove the toaster oven and all accessories from the packaging.
- Remove Packaging Materials: Ensure all packing materials, including any protective films or inserts, are removed from inside and outside the oven.
- Clean Accessories: Wash the baking pan and wire rack in warm, soapy water. Rinse thoroughly and dry completely. Wipe the interior and exterior of the oven with a damp cloth.
- Placement: Place the toaster oven on a stable, heat-resistant, and level surface. Ensure there is at least 4 inches (10 cm) of clearance on all sides and above the appliance for proper ventilation. Do not place it near the edge of a countertop or under flammable materials.
- Initial Burn-Off: Before cooking food, operate the oven empty for approximately 10-15 minutes at the maximum temperature (450°F) on the 'Bake' function. This helps to burn off any manufacturing residues and odors. A slight smoke or odor is normal during this process. Ensure the area is well-ventilated.
Operating Instructions
The Mueller Austria MT-175 Toaster Oven features three control knobs for easy operation.

Image: A detailed view of the toaster oven's control panel, showing the Temperature, Function, and Time knobs.
Control Knobs:
- Temperature Knob (Top): Adjusts the cooking temperature from 150°F to 450°F (65°C to 230°C).
- Function Knob (Middle): Selects the cooking mode: Bake (top and bottom elements), Broil (top element only), or Toast (top and bottom elements, optimized for toasting). A low temperature setting can also be used to warm food.
- Time Knob (Bottom): Sets the cooking duration from 0 to 30 minutes. The oven will automatically shut off when the timer reaches zero. For longer cooking times, turn the knob to the 'Stay On' position. Note: When using 'Stay On', you must manually turn the knob to 'OFF' to stop cooking.

Image: A hand demonstrating the adjustment of the function knob, highlighting the Bake, Broil, and Toast settings.
Using the Rack and Pan:
The toaster oven includes a wire rack and a baking pan. The oven has two rack levels to accommodate different food sizes and cooking needs.

Image: The toaster oven with its included baking pan and wire rack, demonstrating the two available rack positions.
- Upper Rack Position: Ideal for broiling, toasting, or when you need food closer to the top heating elements.
- Lower Rack Position: Suitable for baking, roasting, or when you need more space above the food.
- The baking pan can be used alone or placed on the wire rack to catch drips or for baking smaller items.
Cooking Functions:
- Toast:
- Place bread slices or other items directly on the wire rack. For best results, use the upper rack position.
- Turn the Temperature Knob to 'Max' or 450°F.
- Turn the Function Knob to 'Toast'.
- Turn the Time Knob to your desired toast shade (e.g., 2-4 minutes for light to dark). The oven will automatically shut off when done.

Image: Four slices of bread toasting evenly on the wire rack inside the oven.
- Bake:
- Place food in the baking pan or an oven-safe dish on the wire rack. Use the lower rack position for most baking.
- Turn the Temperature Knob to the desired baking temperature (e.g., 350°F for cookies, 400°F for pizza).
- Turn the Function Knob to 'Bake'.
- Turn the Time Knob to the desired baking time. For times longer than 30 minutes, set to 'Stay On' and use an external timer.
- Preheating: For best baking results, preheat the oven for 5-10 minutes before placing food inside.

Image: A personal-sized pizza baking on the pan inside the toaster oven.
- Broil:
- Place food directly on the wire rack or in the baking pan. Use the upper rack position to bring food closer to the top heating element for effective broiling.
- Turn the Temperature Knob to 'Max' or 450°F.
- Turn the Function Knob to 'Broil'.
- Turn the Time Knob to the desired broiling time. Broiling is typically a quick process, so monitor food closely to prevent burning.

Image: A small roasted chicken cooking on the wire rack inside the toaster oven.
Care and Cleaning
Regular cleaning helps maintain the performance and longevity of your toaster oven. Always ensure the appliance is unplugged and completely cool before cleaning.
- Unplug and Cool: Always unplug the toaster oven from the power outlet and allow it to cool down completely before cleaning.
- Crumb Tray: The crumb tray is located at the bottom of the oven. Open the tray out to remove accumulated crumbs. Wipe the tray with a damp cloth or wash in warm, soapy water. Rinse and dry thoroughly before reinserting.
- Baking Pan and Wire Rack: Wash these accessories in warm, soapy water. For stubborn food residue, soak them before cleaning. Rinse and dry completely.
- Interior: Wipe the interior walls with a damp cloth and mild detergent. Avoid abrasive cleaners or scouring pads that could damage the non-stick coating (if applicable) or surfaces.
- Exterior: Wipe the exterior surfaces with a damp cloth. Do not use abrasive cleaners or metal scouring pads.
- Do Not Immerse: Never immerse the main toaster oven unit in water or any other liquid.
Troubleshooting
If you encounter issues with your toaster oven, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Oven does not turn on. | Not plugged in; power outage; timer not set. | Ensure the oven is securely plugged into a working outlet. Check your circuit breaker. The timer knob must be turned to a time setting or 'Stay On' for the oven to operate. |
| Food is not cooking evenly. | Incorrect rack position; overcrowding; temperature variation. | Adjust rack position for optimal heat distribution. Avoid overcrowding the oven. Rotate food halfway through cooking. Consider using an oven thermometer to verify internal temperature accuracy. |
| Toast is too light or too dark. | Incorrect timer setting. | Adjust the Time Knob for a shorter or longer duration to achieve desired toast shade. Experiment with different settings. |
| Timer stops prematurely. | Mechanical issue. | If the timer consistently stops before reaching zero, contact customer support. For critical timing, use the 'Stay On' function with an external timer. |
| Exterior surfaces are very hot. | Normal operation. | This is normal for toaster ovens. Always use oven mitts and ensure adequate clearance from surrounding surfaces. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Mueller Austria |
| Model Number | MT-175 |
| Power/Wattage | 1100 watts |
| Voltage | 120 Volts |
| Product Dimensions | 37.69 x 22.5 x 30.1 cm (approx. 14.84 x 8.86 x 11.85 inches) |
| Item Weight | 3.46 kg (approx. 7.63 lbs) |
| Capacity | 712 Cubic Inches (fits 4 slices of bread or 9" pizza) |
| Special Features | Manual Controls, 30-minute Timer with Auto Shut-off |
Customer Support and Warranty
Mueller Austria is committed to providing quality products and customer satisfaction. If you have any questions, concerns, or require assistance with your MT-175 Toaster Oven, please contact our customer support team.
While specific warranty details are not provided in this manual, please refer to the product packaging or the official Mueller Austria website for the most current warranty information and terms of service. Keep your purchase receipt as proof of purchase for any warranty claims.
Our professional customer support is available to assist you with any product-related inquiries.