Cold-pressed juice
After extracting juice from fruits and vegetables, the juice may be consumed raw, or the manufacturer may choose to put the juice through a preservation method such as HPP in order to extend shelf life and kill potentially harmful microorganisms. The HPP process allows the juice to be stored for about 30 days.
Orange juice
A small fraction of fresh orange juice is canned. Canned orange juice retains vitamin C much better than bottled juice. The canned product loses flavor, however, when stored at room temperature for more than 12 weeks. In the early years of canned orange juice, the acidity of the juice caused the juice to have a metallic taste. In 1931, Dr. Philip Phillips developed a flash pasteurization process that eliminated this problem and significantly increased the market for canned orange juice.