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
During World War II, American soldiers rejected vitamin C-packed lemon crystals because of their unappetizing taste. Thus the government searched for a food that would fulfill the nutritional needs of the soldiers, have a desirable taste, and prevent diseases such as scurvy in a transportable vitamin C product. The federal government, the Florida department of Citrus, along with a group of scientists desired to develop a superior product to canned orange juice (which was the current orange juice on the market in the 1940s) and developed frozen concentrated orange juice. Unfortunately frozen concentrated orange juice was developed three years after the war had ended.