Method 1: cut a hole horizontally at the top of grapefruit, cut it through, and then peel it by hand. You can peel the whole grapefruit without damaging its skin. The advantage of this is that if you still have endless grapefruit, it will be fresh in the grapefruit skin for three to five days.

Method 2: You can cut a small mouth at the top with a knife first.

Then stainless steel spoon, buckle backwards and extend inward.

You can try peeling it like this. The water on your skin won't come out easily and get all over your hands.