The first step is to choose fresh, ripe grapes without pests and diseases.

Step 2, clean the selected grapes in clean water to remove dust and pesticide residues on the surface.

Step 3, dry the cleaned grapes in a ventilated and sunny place until the water on the surface completely evaporates.

Step 4, put the dried grape trellis flat on the terrace and let it dry naturally in the sun.

Step 5 After the raisins are completely dried, the color will become darker and the taste will become crisp.