Cold-pressed juice
Making cold-pressed juice is a two-step process. The first stage is to shred the fruits and vegetables into a pulp. Typically the shredding process uses a steel rotating disc. Produce is loaded into a large hopper feeding tube and typically falls into a filter bag. The second process is the hydraulic press; this exposes the shredded produce to extreme pressures between two plates. The pressure causes the juice and water content from the produce to drip into a collection tray below, leaving behind the fibre content in the filter bag. The fibre left behind is generally composted, recycled in food products or discarded.
Juice Train
In 1970, Tropicana orange juice was shipped in bulk via insulated boxcars in one weekly round-trip from Florida to Kearny, New Jersey. By the following year, the company was operating two 60-car unit trains a week, each carrying around of juice. On June 7, 1971 the "Great White Juice Train" (the first unit train in the food industry, consisting of 150 100-ton insulated boxcars fabricated in the Alexandria, Virginia shops of Fruit Growers Express) commenced service over the 1,250-mile (2,012-kilometer) route. An additional 100 cars were soon incorporated into the fleet, and small mechanical refrigeration units were installed to keep temperatures constant on hot days. Tropicana saved $40 million in fuel costs alone during the first ten years in operation.