‘Plant factories’ are being developed in Japan to grow lettuces and green leaves at all times of the year in a climate-controlled and sterile environment.
The warehouses ensure the vegetables are uncontaminated by pollution or pests, use no pesticides and generate produce including garland chrysanthemum and romaine lettuce that can be eaten without washing.
The Japanese Government has encouraged the development of the factories, some of which can generate up to three million vegetables a year, amid rising concerns over the amount of chemicals found in some of the country’s fresh produce.
“Vegetables are produced in the factory without being exposed to the air outside,” a spokesman for the Ozu Corporation told the Daily Mail. “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.”