1. Prepare 550g grapes.
2. Seedless grapes.
3. Cut them off one by one, leaving a twig about 2mm long at the top.
4. Gently scrub the grape surface with 5 teaspoons of corn starch.
5. Wash away the starch and stains on the grape surface.
6. Drainage.
7. Put the grapes into the fruit dryer and select the 58-degree air drying function.
8. Turn on the fruit dryer at night and put it in the sun through the lid during the day. In a week or so, the water will be about 70% dry.