How many Jin of jiaozi can be packed by manpower in an hour depends on the speed and proficiency of packing jiaozi. Generally speaking, a novice can pack jiaozi at a slower speed, perhaps only a dozen catties of jiaozi in an hour, while a skilled worker can pack dozens of catties of jiaozi in an hour.

The following is an example of being a jiaozi:

1. Prepare ingredients: dumpling skin and dumpling stuffing.

2. Put the dumpling skin in the palm of your hand, add a proper amount of dumpling stuffing, fold the dumpling skin into a semicircle, and hold the edge of jiaozi with your thumb and forefinger.

3. According to personal preference, you can pinch out different lace shapes.

4. Put the wrapped jiaozi into a steamer or a boiling pot and steam or cook until cooked.

It should be noted that in the process of wrapping jiaozi, the ratio of dumpling wrapper to dumpling stuffing should be kept appropriate. Generally speaking, each dumpling wrapper should be matched with an appropriate amount of dumpling stuffing, neither too much nor too little. At the same time, when you pinch the edge of jiaozi, you should pinch it hard to avoid cracking of jiaozi during steaming or boiling.