7 CFR § 51.772
Fairly smooth texture
July 6, 2020
Fairly smooth texture means that the skin is fairly thin and not coarse for the variety and size of the fruit. “Fairly thin” means that the skin thickness does not average more than 1⁄2 inch (12.7 mm), on a grapefruit 41⁄8 inches (104.8 mm) in diameter.