Dive into the World of Food Drying Technologies: Unraveling the Best Methods

Food drying equipment refers to mechanical equipment used to dry food. According to different drying methods, food drying equipment can be divided into the following types:

Hot air dryer: Dries food by heating air, usually equipped with a large hot air circulation system. Suitable for large-scale food processing and production, such as vegetables, fruits, meat, etc.

Vacuum dryer: In a vacuum environment, the moisture in the food is quickly evaporated using low temperature and low pressure conditions to achieve drying. Suitable for foods that need to retain nutrients and color, such as fruits, vegetables, herbs, etc.

Microwave dryer: uses microwave energy to make the water molecules in the food absorb the microwave energy and convert it into heat energy to evaporate the water. Suitable for quickly drying food, such as bread, biscuits, fruit and vegetable slices, etc.

Freeze dryer: quickly freezes food to below the freezing point, and then directly sublimates the water from solid ice into gaseous water under high vacuum conditions to achieve drying. Suitable for foods that need to retain their original taste and nutritional value, such as coffee, milk powder, etc.

Spray dryer: Drying is achieved by spraying the food solution into mist and rapidly evaporating the water at high temperature. Suitable for drying liquid or solution foods, such as milk, juice, etc.

Air flow dryer: After pulverizing the wet materials into fine particles, the air flow is used to bring the fine particles into the dryer for drying. Suitable for drying powdery or granular foods, such as rice, flour, etc.

Mesh belt dryer: widely used in building materials, metallurgy, chemical industry, cement industry to dry slag limestone, coal powder, slag, clay and other materials. The rotary type has strong adaptability to materials, can dry various materials, and the equipment operation is simple and reliable.

Each of these food drying equipment has its own characteristics and different scopes of application. In practical applications, appropriate drying equipment should be selected based on factors such as food type, quality requirements, and production scale.