Final answer:
When making sweet wine, grapes need to be dried under specific conditions such as air circulation, low humidity, and moderate temperature.
Step-by-step explanation:
When making a sweet wine, the grapes need to be dried after picking to concentrate their sugar content. The conditions needed to dry grapes are as follows:
- Air circulation: The grapes should be spread out in a well-ventilated area to allow for proper airflow and prevent the growth of mold and rot.
- Humidity: The drying area should have low humidity, which helps to remove moisture from the grapes and aids in the drying process.
- Temperature: The grapes should be dried at a moderate temperature, around 12-27 degrees Celsius, to prevent spoilage and maintain the desired flavors and aromas.
By drying the grapes, the water content is reduced, resulting in a higher concentration of sugar and flavors in the remaining juice, which is crucial for making sweet wines.