7 CFR § 51.768
Smooth texture
July 6, 2020
Smooth texture means that the skin is thin and smooth for the variety and size of the fruit. “Thin” means that the skin thickness does not average more than 3⁄8 inch (9.5 mm), on a central cross section, on grapefruit 41⁄8 inches (104.8 mm) in diameter.