1. First, put rice, soup and vegetables in different disposable boxes.

2. Put the food bag first, then put the food box into the lunch box, put the soup on the food box, and tie the plastic bag with the tableware.

When packaging, it is best to separate the meat and vegetables from the wet ones. If there is soup, it should be packaged separately from the non-soup, so as to prevent the food flavor from crossing and facilitate the subsequent "returning to the pot" for further processing.