According to the operation manual of boss official website, you can set it according to the following steps:

1. Open the lid of the steamer and put the ingredients in.

2. Select the "Humidification" function on the display screen, and then select the required temperature and time.

3. Close the lid and start humidifying and baking.

4. Check whether the food is ready within the set time, and continue to bake or take out the food as needed.