The second layer should remain flush or slightly lower than the top of the carton, so that when the lid is closed the fruit is not forced downward. This method of packing also prevents excessive movement and settling of the fruit during subsequent handling and transport. Carton net weights are two to four kilograms, depending on the importing country and buyer requirements. Some markets prefer rambutans packed in punnets or clamshells, or in trays overwrapped with plastic film. Packing into these small units aids with presentation, reduces mechanical damage, and, in most cases, extends the shelf life.
Ventilation is required in all four walls.
If one-piece cartons are used, the lids should close leaving a maximum space of two centimeters between the fruit and the lid. Carton dimensions vary depending on the net weight and the market. Some research indicates that rambutan color retention and shelf life can be increased with modified atmosphere packaging using plastic bags or wax treatments. These measures have not necessarily been implemented in commercial operations. Cooling and Storage Rambutan is a non-climacteric fruit, and although the fruit does show increases in respiration and ethylene production after harvest, this is related to deterioration as opposed to ripening.