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The average concentration of Pb in 53 samples of canned orange juice currently sold in Korean market was 0.225 ㎎/㎏, and that of Sn, 40.7 ㎎/㎏. There was no appreciable difference in Pb concentration according to elapsed time after manufacturing, whereas Sn concentration increased 0.66 ㎎/㎏ per month. During the storage at room temperature or in refrigerator after opening, the Pb concentration increased slowly, reaching 1.7 to 1.8 times of original concentration, whereas Sn concentration increased by 20% per day, resulting in 3 times of original concentration after 7 days. There were no serious changes in Pb and Sn concentration in storage at room temperature or refrigerator for 3 days, when juice samples were opened and transferred to glass container. It is needed that detailed inspection by undertaken to monitor the contents of heavy metals in canned orange juice, since 18% of samples within recommended distribution period exceeded the legal standard for Pb, and recommended that more attention be paid in handling canned orange juice after opening, in order to avoid the hazard from heavy metals.
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