ivelling of the peel is a key factor for the commercial decline of orange. The application of food grade
wax not only reduces water loss from the fruit but also improves the appearance of the fruit. Low temperature
storage is the most effective method to maintain quality and extend shelf life of the fruit. Postharvest quality of
mandarin orange (Citrus reticulata Blanco cv. ’Sai Nam Peung’) was studied in relation to teva wax (18% food
grade shellac, polyethylene) coating and cold storage for 1 month. We found that teva wax coating is significantly
difference from no wax (control) in % weight loss, shelf life and glossiness of the fruit. However, the glossiness of
all wax coated fruits are not significantly difference at day 21 and 28. Moreover, the combination of wax coating
and cold storage is significantly difference from that in room temperature storage for % weight loss, shelf life and
no chilling injury appearance during 1 month of storage. There are no significantly changes in T.S.S/ T.A ratio
during storage.