Of the 6,205 companies exhibiting at last week's ANUGA food trade fair in Germany, 640 presented organic products. According to the Swiss Research Institute of Organic Agriculture, organics' share of the global food market will be between 5% and 10% by 2005, but are retailers latching on to the opportunities this affords? And how well are suppliers and retailers cooperating to grow the sector? The potential is fantastic - if they get it right. Catherine Sleep reports.