Cal. Code Regs. tit. 3, § 1420.1 – Cantaloupes, Mature.

(a) The appearance of the outside indicates maturity.
(b) The arils which surround the seed during the development of maturity have been absorbed.
(c) The juice of the edible portion contains not less than 8 percent soluble solids as determined by the standard hand refractometer.

“Mature” in the case of a cantaloupe means that the cantaloupe complies with all of the following requirements:

1. New section filed 1-21-75; effective thirtieth day thereafter (Register 75, No. 4).