“Japanese technology giant Toshiba has unveiled a huge factory farm where it is growing various types of lettuce leaves without sunlight or soil for sale in its new healthcare business. Located in disused 21,000-square foot electronics factory in Yokosuka, Toshiba claims to have created a perfect ‘germ free’ environment where it will grow three million bags of lettuce a year. Completely cut off from conditions outside the temperature and humidity controlled isolation tank, lettuce inspectors wear full body suits while making notes on the quality and growth of the leaves on their tablet computers in order to prevent the air around the plants becoming contaminated. Each plant is blasted with artificial lighting to trick it into believing it is exposed to sunlight, while vitamins and nutrients are injected directly into its roots, meaning the lettuce does not need soil. The goal of Toshiba’s new high-tech farm is to produce the world’s highest quality lettuce. The final product will be free of any form of bacteria, fungi or insect life before being placed into sealed bags, which should ensure the product has a longer shelf life than other lettuces.”
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