“U.S. No. 1” consists of grapefruit which meet the following requirements:
Basic requirements:
Discoloration: Not more than one-third of the surface, in the aggregate, may be affected by discoloration. (See § 51.770.);
Fairly smooth texture;
Fairly well colored;
Firm;
Mature;
Similar varietal characteristics; and,
Well formed.
Free from:
Decay;
Unhealed skin breaks; and,
Wormy fruit.
Free from damage caused by:
Ammoniation;
Bruises;
Buckskin;
Caked melanose;
Dirt or other foreign material;
Disease;
Dryness or mushy condition;
Green spots;
Hail;
Insects;
Oil spots;
Scab;
Scale;
Scars;
Skin breakdown;
Sprayburn;
Sprouting;
Sunburn;
Thorn scratches; and,
Other means.
For tolerances see § 51.760.