As a special vegetable that people love, onion has a special aromatic and spicy flavor, rich nutritional value and high health care effect, and enjoys the reputation of “Vegetable Queen”. It is regarded as a multi-functional lipid-lowering, anti-cancer and nutritional health food in nutritional diet. The utilization of the existing onions can be processed into dehydrated onion slices, onion powder, onion sauce and other foods, in addition to being directly cooked and eaten, and has broad market prospects and economic value at home and abroad. Today, we will explain to you the onion drying process and related equipment of onion.
1. Onion drying process
Process of onion drying production line: picking and conveying – peeling – cutting – cleaning – drying – drying – vacuum packaging. The specific operation points are as follows:
Step 1: Raw material selection. Before drying onions, the best ones should be strictly selected and the bad ones should be removed, and the parts with diseases, insects, rot and dryness should be removed.
Step 2: Peeling. Peel off the dry outer skin by an onion peeler
Step 3: Cutting. Cut the peeled onions into slices through a multi-purpose cutter.
Step 4: Cleaning. Rinse the onion slices with clean water through a bubble washing machine to remove dust and dirt on the surface.
Step 5: Air dry. The cleaned onion slices are lifted and then passed through an air knife air dryer to dry the moisture on the surface.
Step 6: Drying. The air-dried onion slices are conveyed to the dryer for drying through the mesh belt, so that the moisture content is reduced to less than 5%. The drying temperature ranges from 65°C to 85°C, and it is dried at different temperatures and gradually cooled down. The general drying time is about 5 hours.
2.Main equipment of onion drying production line
The main equipment of onion drying production line includes onion peeling machine, washing machine, multi-function vegetable cutter, air dryer, centrifugal dryer, belt dryer, vacuum packaging machine, etc. In order to improve the automation level of the onion drying production line, auxiliary equipment such as elevators, belt conveyors, and picking tables can be equipped as required.
Our company has paid attention to the popular trend of dehydrated onions, absorbed the current international advanced technology for onion drying, and developed a complete solution. Adhering to the concept of making food production simpler and safer, we will improve the professionalism and refinement of processing equipment in terms of improving safety, production efficiency, finished product quality, and performance, and strive to become a competitive choice.
For the onion drying business, our company also provides a full range of professional services including market research, projects, and factory construction planning. Trust our services to help you as much as possible with your investment.