The Beijing roast duck scalding machine is a specialized device used for scalding the duck during the preparation of Beijing roast duck. Below is a detailed introduction to the Beijing roast duck scalding machine:

### 1. Working Principle

The scalding machine works by heating and spraying mist or hot water onto the surface of the duck, causing the pores to contract, the skin protein to coagulate, and the subcutaneous gas to expand to the maximum extent, resulting in a tight and firm skin. This process accelerates the drying of the duck, enhances its appearance, ensures even coloring during roasting, and results in crispy and fragrant duck skin after cooking.

### 2. Operating Procedure

1. Clean the equipment: Before use, the interior and surface of the scalding machine should be cleaned thoroughly and dried.

2. Prepare the duck: Hang the duck that needs to be scalded, ensuring it is in a suitable state for scalding.

3. Start the equipment: Turn on the power or gas switch of the scalding machine to bring it to a normal working state.

4. Adjust temperature and water flow: Adjust the temperature and water flow speed of the scalding machine according to the desired scalding level. It is generally recommended to keep the temperature between 92~95℃, with a moderate water flow speed to ensure even heating of the duck.

5. Scalding operation: Place the duck into the scalding machine, which will automatically spray mist or hot water onto the surface of the duck. Depending on the machine's settings, the scalding time usually ranges from a few seconds to several tens of seconds.

6. Remove the duck: Once the scalding is complete, take the duck out of the scalding machine for the next step.

### 3. Equipment Features

1. High degree of automation: Modern scalding machines typically use automated control systems that can automatically complete the scalding operation, greatly improving production efficiency.

2. Even heating: The scalding machine employs advanced heating technology to ensure the duck is heated evenly, avoiding local overheating or underheating.

3. Easy operation: The operating procedure of the scalding machine is simple and easy to understand, allowing operators to follow the equipment instructions for operation.

4. Energy-saving and environmentally friendly: Modern scalding machines are usually designed to be energy-efficient and environmentally friendly, reducing energy consumption and pollution.

### 4. Precautions

1. Carefully read the user manual before use to ensure the equipment is used correctly.

2. During use, do not reach into the scalding machine to avoid accidents.

3. Clean the equipment promptly after use to maintain hygiene and prevent bacterial growth.

4. During operation, if the temperature of the scalding machine is too high or the speed is too fast, adjustments should be made in a timely manner to avoid damage to the duck.

In summary, the Beijing roast duck scalding machine is one of the essential devices for making Beijing roast duck. By using and maintaining the equipment properly, the quality and taste of Beijing roast duck can be ensured to reach the best state.