Eggplant Drying Case

1.Customer requirements

Henan agricultural product processing enterprises plan to produce dehydrated dried eggplants, but there are the following problems with traditional drying methods:

① Serious discoloration – eggplants are prone to oxidation and blackening, resulting in differences in sales of finished products;

② High energy consumption – traditional sun drying or hot air drying have low efficiency and are greatly affected by weather conditions;

③ Nutrient loss – Long term drying at high temperatures leads to loss of lycopene and vitamins;

④ Poor hygiene standards – outdoor drying is prone to pollution and cannot meet export standards.

The customer wishes to customize an energy-saving, efficient, color preserving, and food hygiene compliant drying equipment, and hopes to increase production capacity to meet the processing needs of different eggplant varieties.

2.Customized solution for Jinlu Machinery

Equipment solution: Multi layer mesh belt hot air circulation dryer (made of 304 stainless steel material, food grade standard)

Core process: ① Pre treatment stage: Cut eggplant into strips/slices (5-8mm), and apply color protection treatment (soaking in salt water or vitamin C) to inhibit oxidation and blackening. ② Segmented drying process: Phase 1 (50-55 ℃, 2 hours): Low temperature slow drying to remove surface moisture and prevent skin hardening; Second stage (60-65 ℃, 3 hours): Medium temperature dehydration to promote uniform evaporation of internal water; The third stage (70-75 ℃, 1 hour): high temperature setting, sterilization, and improved dryness, with a moisture content of ≤ 8%. ③ Intelligent control: automatic adjustment of temperature and humidity, uniform circulation of hot air, avoiding local overheating or high humidity; The heat recovery system saves 30% energy and reduces drying time by 40% compared to traditional methods. ④ Adaptation optimization:

Adjustable mesh belt speed, suitable for different thicknesses of eggplant slices/strips; The daily production capacity reaches 1.5 tons, supporting continuous production and meeting HACCP certification requirements.

3.Customer reviews

The eggplant drying equipment of Jinlu Machinery has exceeded expectations! The finished product has a bright purple color and good rehydration properties, and the export customers are very satisfied. Compared with traditional sun drying, the production efficiency has been increased by three times, and it is not affected by weather. The equipment runs stably, with lower energy consumption than expected and a return on investment period of only 8 months. Their after-sales team also provides drying parameter suggestions that are suitable for eggplant varieties, and the service is very professional! “- Mr. Wang, a sole proprietor, happily said.