Cucumbers are thought to have originated in Southern Asia and were very popular in India. They eventually spread to Europe, where for thousands of years they were used to quench thirst. Cucumbers are very popular in salads. Related to the watermelon it is easy to see why their watery flesh makes them so refreshing. Cool as a cucumber is not just a catchy phrase, the pulp temperature can be up to 10oC cooler than the air temperature! Cucumbers are a good source of vitamin C. They also supply fiber, especially with the skin on. Juice is a liquid naturally contained in fruit or vegetable tissue. Juice is prepared by mechanically squeezing or macerating fresh fruits or vegetables without the application of heat or solvents. For example, orange juice is the liquid extract of the fruit of the orange tree. Juice may be prepared in the home from fresh fruits and vegetables using variety of hand or electric juicers. Many commercial juices are filtered to remove fiber or pulp, but high pulp fresh orange juice is a popular beverage. Juice may be marketed in concentrate form, sometimes frozen, requiring the user to add water to reconstitute the liquid back to its "original state". However, concentrates generally have a noticeably different taste than their comparable "fresh-squeezed" versions. Other juices are reconstituted before packaging for retail sale. Common methods for preservation and processing of fruit juices include canning, pasteurization, freezing, evaporation and spray drying.