Japanese 'plant factory' churn out immaculate vegetables

In a perfectly controlled and totally sterile environment - uncontaminated by dirt, insects or fresh air - Japanese scientists are developing a new way of growing vegetables.The vegetables from plant factories - which include green leaf, romaine lettuce and garland chrysanthemum - are sold at a premium to Japanese shoppers. No pesticides are used - and there is no risk of contamination with food poisoning bugs.The spread of plant factories has been encouraged by the Japanese government amid concerns about the use of chemicals in vegetables.

A spokesman for the Ozu Corporation factory in Tokyo said: 'Vegetables are produced in the factory without being exposed to the air outside. 'Stable production is guaranteed throughout the year by controlling lighting, temperature, humidity, carbon dioxide and water. They can also meet the demands of consumers who want safe foods.'

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