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Grapefruit knives are designed to section the pulp by hugging the walls and membranes of the fruit as you cut. We put five models to the test.
What We Learned
A grapefruit knife, a small tool with a curved blade that’s serrated on both sides of the metal, is designed to section the pulp by hugging the walls and membranes of the fruit as you cut, separating the sections from the peel without picking up pith. (This gives grapefruit knives a distinct advantage over conventional paring knives.) First, you run the blade around the inner rim of...