1. Introduction
Java apple fruit is popular in Thailand and abroad due to its
beautiful skin colour as well as sweet and crispy flesh. The
fruit is also of high nutritional value. In the year 2005, exports
of the flesh java apple from Thailand reached as much as 44.6 million US $, which made it the third ranking export fruit after
durian and longan.
Amongst postharvest operations of the fresh fruit, sizing is
considerably labour intensive. Sizing is necessary, because
the sized fruit a) has higher value than fruit that is sold unsorted b) it attracts buyers and c) it facilitates packaging