Does the subject want to ask about the "preservation method of scallion cake" for frozen preservation? According to the relevant information inquired, low-temperature quick freezing can make the bread in a frozen and solidified state, so that dough adhesion will not occur. The middle of each layer is separated by plastic film, which will not make the dough stick together and is convenient to eat and take. Scallion cake is a special snack, belonging to Fujian cuisine or Shandong cuisine. The main ingredients are flour and chopped green onion, which tastes fragrant and salty and is a common food in the streets and night markets.