Wash the grapes thoroughly under cool water.
Dry them with a paper towel or clean kitchen towel.
Place the grapes in a single layer on a baking sheet lined with parchment paper.
Optional: Drizzle with fresh lime juice or sprinkle with orange zest for extra flavor.
Freeze for at least 2 hours or until fully frozen.
Transfer to an airtight container or freezer bag for storage.