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
Finishers have a screw-type design that comprises a conical helical screw enclosed in a cylindrical screen with perforations the size of 0.020 to 0.045 inches. Thereafter, the finished orange juice flows through blending tanks where the juice is tested for acid and soluble solids. At this stage, sugar can be added to the juice depending on if the product will be a sweetened or unsweetened beverage. Following blending, the orange juice is deaerated where the air is incorporated into the juice during extraction. The benefits of deaeration include the elimination of foaming, which improves the uniformity of can fill and improvement regarding the efficiency of the heat exchanger. Orange peel oil is essential for maximum flavor, but according to U.S. standards for Grades of Canned Orange Juice, 0.03% of recoverable oil is permitted. Deoiling through the use of vacuum distillation is the mechanism used to regulate the amount of peel oil in the juice. Condensation separates the oil and the aqueous distillate, which is returned to the juice.