There are five stages of maturity for the pineapples. Mostly, harvest occurs during the third stage. The size, weight, and brix of pineapple increase as they mature, while the firmness decreases. Initially, the fruit is a glossy bluish dark green. By the last stage of maturity the pineapple is an orange-yellow color. Due to climatic conditions in the tropical and subtropical areas of production, the skin may remain green while the fruit has reached full maturity and ripeness. All skin colors are allowed as long as the Brix level has met the minimum requirement.
The following color classification, or peel-color index, may be used in trade:
C0 – Totally green exterior
C1 – Beginning to turn yellow/orange on one quarter of the fruit surface
C2 – Yellow/orange on one half of the fruit surface
C3 – Yellow/orange on two thirds of the fruit surface
C4 – Totally orange/yellow fruit.
Pineapples are classified in 3classes, as defined below:
1. Extra Class. Pineapples in this class must be of superior quality. They must be characteristic of the variety. The crown, if present, must be single and straight with no side-shoots. It must be fresh and not discolored. The flesh must be perfectly sound, must be free from defects, with the exception of very slight superficial defects, provided these do not affect the general appearance of the produce, the quality, the keeping quality and presentation in the package.
A total tolerance of 5%, by number or weight, of pineapples not satisfying the requirements of the class but meeting those of Class I is allowed. Within this tolerance not more than 0.5% in total may consist of produce satisfying the requirements of Class II quality
2. Class I. Pineapples in this class must be of good quality. They must be characteristic of the variety. The crown, if present, must be single and with no side-shoots. It may be slightly damaged, slightly discolored and slightly curved with a maximum inclination not exceeding 30° from the longitudinal axis of the fruit.
A total tolerance of 10%, by number or weight, of pineapples not satisfying the requirements of the class but meeting those of Class II is allowed. Within this tolerance not more than 1% in total may consist of produce satisfying neither the requirements of Class II quality nor the minimum requirements, or of produce affected by decay
3. Class II. This class includes pineapples that do not qualify for inclusion in the higher classes but satisfy the minimum requirements. Pineapples in this class must be of reasonable quality and suitable for human consumption and meet the minimum requirements. The flesh must be free from major defects.
A total tolerance of 10%, by number or weight, of pineapples satisfying neither the requirements of the class nor the minimum requirements is allowed. Within this tolerance not more than 2% in total may consist of produce affected by decay.
The size tolerance for all classes: a total tolerance of 20%, by number or weight, of pineapples not satisfying the requirements as regards sizing is allowed