Grape drying room is a kind of equipment specially used for raisin processing. By controlling temperature, humidity and wind speed, grapes can be evenly dehydrated in a short time to achieve the purpose of drying and preservation. Compared with traditional natural drying or open-air drying methods, drying room is more efficient and hygienic, and can ensure the quality and taste of raisins.

The Grape drying room mainly uses hot air circulation system for drying. Its working process is as follows:

Pretreatment: fresh grapes are screened and washed, and can be soaked in alkaline water as needed to promote the cracking of grape epidermal wax and improve drying efficiency.

Hot air drying: The drying room uses heat source (such as electric heating, gas, air energy heat pump, etc.) to heat the air, circulate hot air through the fan, make the heat evenly distributed, and promote water evaporation.

Moisture emission: Through the dehumidification system, the water vapor generated during the drying process is regularly discharged to keep the room dry.

Balanced drying: By turning or adjusting the drying rack in batches, ensure that the grapes are heated evenly to prevent local over-drying or incomplete drying.

Finished product cooling: After drying, raisins need to be placed in a cool and ventilated place for cooling to prevent moisture resorption.

1. High efficiency and energy saving

Traditional drying takes 10-20 days, while grape drying room generally only takes 48-72 hours to complete the drying process, greatly improving production efficiency. At the same time, modern drying rooms mostly use air energy heat pumps or other energy-saving technologies to reduce energy consumption.

2. Quality assurance

The drying room can accurately control the temperature and humidity to avoid the quality degradation caused by weather changes or environmental pollution, so that the color, flavor and nutrients of raisins can be better preserved.

3. Hygiene and safety

Natural drying is susceptible to dust, insects and birds, while closed drying rooms can effectively avoid these problems, ensure food safety, and meet modern food processing standards.

4. Wide applicability

In addition to raisin processing, the drying room can also be used for dehydration of fruits and vegetables such as red dates, wolfberries, and persimmons. One machine can be used for multiple purposes to improve equipment utilization.

Grape planting base: used for large-scale processing, to increase the added value of grapes and reduce the risk of unsalable fresh fruits.

Food processing plant: industrialized production to meet the market demand for high-quality raisins.

Family and self-employed: small drying room is suitable for families or small cooperatives, self-production and self-sale, to increase income.

 Our Guoxin Machinery is located at No. 9 Yulian Industrial Zone, Gongyi City, Zhengzhou, Henan Province, China. We design Grape Drying machine, Grape Drying machine, Grape dehydrator machine, fruit and vegetable drying equipment, food cleaning, drying, and frying production lines. Our products have obtained CE and ISO certifications and have been exported to more than 90 countries, occupying a place in the world and continuing to grow.