1. Introduction
Thank you for choosing the NWOUIIAY Automatic Electric Milk Frother. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your device. Please read it thoroughly before first use and keep it for future reference.
2. Safety Instructions
- Always ensure the power supply matches the voltage specified on the appliance.
- Do not immerse the base unit in water or any other liquid. The removable cup is washable.
- Keep out of reach of children. This appliance is not intended for use by persons with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Do not operate the appliance if the power cord or plug is damaged, or if the appliance malfunctions or has been damaged in any manner.
- Use only attachments/accessories specified by the manufacturer.
- Ensure the frother is placed on a stable, flat, heat-resistant surface.
- Avoid contact with moving parts.
- Unplug from outlet when not in use and before cleaning. Allow to cool before putting on or taking off parts, and before cleaning the appliance.
- The integrated thermostat maintains milk temperature around 65 ± 5 °C for safety and optimal results.

Image: Depicts the intelligent system and safe operation features of the milk frother, highlighting temperature control and safety.
3. Product Components
The NWOUIIAY Milk Frother consists of the following main parts:
- Base Unit: Contains the heating element and control panel.
- Removable Milk Jug: Stainless steel jug with non-stick coating and handle.
- Lid: Transparent lid for the milk jug.
- Frothing Whisk: For creating milk froth.
- Stirring Whisk: For heating milk without frothing.

Image: Shows the milk frother disassembled into its main parts (base, jug, lid, whisks) along with its dimensions.

Image: Illustrates the removable milk jug, emphasizing its separate design for easy handling and cleaning.
4. Setup
- Unpack: Carefully remove all components from the packaging.
- Clean: Before first use, wash the removable milk jug, lid, and whisks with warm soapy water. Rinse thoroughly and dry. Wipe the base unit with a damp cloth.
- Placement: Place the base unit on a dry, stable, and heat-resistant surface.
- Attach Whisk: Select the appropriate whisk (frothing or stirring) and securely attach it to the spindle inside the milk jug.
- Position Jug: Place the milk jug onto the base unit. Ensure it is properly seated.
- Connect Power: Plug the power cord into a suitable electrical outlet.
5. Operating Instructions
This frother offers multiple functions for various milk preparations:

Image: Displays the four main functions: Hot milk froth, Cold milk froth, Hot milk, and Hot cocoa.

Image: Shows the different temperature settings available: 120°F (49°C), 140°F (60°C), 160°F (71°C), and Cold.
General Operation Steps:
- Choose Whisk:
- For frothing (hot or cold) or heating with light froth: Use the frothing whisk.
- For heating milk without froth (e.g., for hot chocolate): Use the stirring whisk.
- Add Milk: Pour milk into the jug. Observe the internal milk level indicators.
- Maximum capacity for heating (and mixing chocolate): 300 ml.
- Maximum capacity for heating and frothing: 150 ml.
- Tip: For best frothing results, use whole milk (fat content > 3.0%).
- Select Temperature/Function:
- The control button allows selection of desired temperature: 49°C (120°F), 60°C (140°F), 71°C (160°F), or Cold.
- Press the button repeatedly to cycle through the options. The indicator light will show the selected setting.
- Start Operation: Once the desired setting is selected, the frother will start automatically.
- Completion: The frother will automatically shut off when the process is complete.
Specific Function Details:
- Heating and Frothing: (Frothing whisk)
- 49°C (120°F): Approx. 100-200 seconds
- 60°C (140°F): Approx. 120-270 seconds
- 71°C (160°F): Approx. 160-380 seconds
- Heating and Mixing (no froth): (Stirring whisk)
- 49°C (120°F): Approx. 120-270 seconds
- 60°C (140°F): Approx. 160-360 seconds
- 71°C (160°F): Approx. 200-450 seconds
- Heating Chocolate and Mixing: (Stirring whisk, 71°C/160°F)
- 71°C (160°F): Approx. 200-450 seconds
- Cold Milk Froth: (Frothing whisk)
- Select "Cold" option. The frother will froth milk without heating.
6. Maintenance and Cleaning
Regular cleaning ensures optimal performance and extends the lifespan of your milk frother.

Image: Demonstrates the removable milk jug being washed under a tap and placed in a dishwasher, highlighting its easy-to-clean and dishwasher-safe design.
- Unplug: Always unplug the frother from the power outlet before cleaning.
- Cool Down: Allow the appliance to cool completely before disassembling or cleaning.
- Clean Milk Jug: The removable milk jug has a non-stick coating and is easy to clean. It can be washed by hand with warm soapy water or placed in a dishwasher. Ensure no water enters the electrical connection point on the bottom of the jug if washing by hand.
- Clean Whisks: Remove the whisks and wash them with warm soapy water.
- Clean Base Unit: Wipe the exterior of the base unit with a soft, damp cloth. Do not immerse the base unit in water or any other liquid.
- Dry Thoroughly: Ensure all parts are completely dry before reassembling or storing the frother.
- Storage: Store the frother in a clean, dry place.
7. Troubleshooting
If you encounter issues with your milk frother, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Frother does not turn on. | Not plugged in; power outlet malfunction; jug not properly seated. | Ensure the frother is securely plugged into a working outlet. Check if the milk jug is correctly placed on the base unit. |
| Milk is not frothing or froth is poor. | Incorrect whisk used; insufficient milk fat content; too much milk; whisk not properly attached. | Ensure the frothing whisk is used. Use whole milk (fat content > 3.0%). Do not exceed the "MAX FROTH" fill line (150ml). Check if the whisk is securely attached. |
| Milk is not heating. | Incorrect function selected; too much milk; heating element issue. | Ensure a heating function (e.g., 120°F, 140°F, 160°F) is selected. Do not exceed the "MAX HEAT" fill line (300ml). If the problem persists, contact customer support. |
| Frother stops prematurely. | Overheating protection activated; jug not properly seated. | Allow the frother to cool down. Ensure the milk jug is correctly placed on the base unit. |
8. Specifications
| Brand | NWOUIIAY |
| Model Number | MMF-921A |
| Color | Silver |
| Material | Steel |
| Power | 550 Watts |
| Capacity (Heating) | 300 Milliliters |
| Capacity (Frothing) | 150 Milliliters |
| Dimensions (L x W x H) | 13.5 x 13.5 x 21 cm |
| Item Weight | 1.5 Kilograms |
9. Warranty and Support
Information regarding warranty coverage and customer support is typically provided with your purchase documentation or on the manufacturer's official website. Please refer to those resources for details on warranty periods, terms, and how to contact customer service for assistance.
For further assistance or inquiries, please visit the official NWOUIIAY website or contact their customer support directly.