Frozen food is divided into cooled food and frozen food. Frozen food is easy to preserve and widely used in the production, transportation, and storage of perishable foods such as meat, poultry, seafood, milk, eggs, vegetables, and fruits; Nutrition, convenience, hygiene, and economy; The market demand is high, occupying an important position in developed countries and developing rapidly in developing countries.
Cooling food: Food that does not require freezing, is food that is cooled to a temperature close to the freezing point and stored at this temperature.
Frozen food: refers to food that has been frozen and stored at a temperature below its freezing point.
Cold food and frozen food are collectively referred to as frozen food, which can be divided into five categories based on raw materials and consumption forms: fruits and vegetables, aquatic products, meat, poultry, eggs, rice and flour products, and convenience foods.