The French gourmet company ADF - Alain Ducasse Formation developed with the French company GEM 11 recipes for ESA in a research project defining nutrition for astronauts on future long-duration space missions. At least 40% of the diet should consist of nine basic ingredients which ESA envisions to grow in greenhouses on other planets. They are: rice, onions, tomatoes, soya, potatoes, lettuce, spinach, wheat and spirulina.