Rinse the whole yuzu thoroughly under running water to remove any surface impurities. If desired, scrub the peels with coarse salt to cleanse them further and enhance their natural fragrance.
With a sharp knife, carefully trim away any dark spots or blemishes on the peel. Slice each yuzu into quarters, cutting from the stem down to the bottom tip. Remove the thick white pith to prevent bitterness and achieve a smooth, well-balanced flavor.
Squeeze out the juice and pulp into a small bowl, making sure to extract as much liquid as possible. If preferred, remove the seeds using a knife or spoon for a smoother texture. Trim off the stem ends and discard them.
Place the yuzu peels on a cutting board with the skin facing down. Using a steady hand, slice them into thin, julienne-style strips to maximize their aromatic infusion.
Return to the bowl of juice and pulp. Remove the pulp and press it firmly with your hands to extract any remaining juice. For a more refined texture, blend the pulp in a food processor or chop it finely with a knife. Set aside for later use.