When using a mesh belt dryer to dry grapes, there are several things to consider:

1. Cleaning and Preparation: Make sure the dryer mesh belt is clean and free of residue. Clean and disinfect the inside and outside of your dryer to prevent the spread of germs and contaminants. Also, check the grapes for any rotten or damaged parts and remove them, leaving only healthy grapes.

2. Proper pre-treatment: Before putting the grapes into the dryer, some pre-treatment can be carried out. For example, you can soak grapes in lightly salted water to remove surface impurities and pesticide residues. You can also shake the grapes gently to remove excess moisture.

3. Ensure good ventilation: During the drying process, ensure that the dryer has a good ventilation system. This helps drain away the moisture and volatile compounds released by the grapes, preventing them from building up inside the dryer.

4. Control temperature and time: Adjust the temperature and time settings of the dryer according to the type and size of the grapes. Generally speaking, grapes should be dried at a temperature between 45°C and 60°C, with the time depending on the moisture content of the grapes and the degree of drying required.

5. Check the grapes regularly: During the drying process, check the condition of the grapes regularly. If you find any spoiled or moldy grapes, remove them promptly to prevent them from spreading to other grapes.

6. Storage and preservation: After the grapes are completely dry, place them in appropriate containers for sealed storage to keep them dry and fresh. Avoid exposing wet grapes to moisture to prevent re-absorption of moisture.

• Prev: Is the mesh belt dryer suitable for drying Moringa leaves?
• Next: Is it better to use a mesh belt dryer or a heat pump dryer for pepper drying?