Suppliers evade questions on phosphonic acid residues
Organic buckwheat from China is trading in a range of USD 1,275-1,300/mt CFR Hamburg. Curiously enough suppliers prefer not to be asked about phosphonic acid residues. This clearly indicates that organic suppliers fail to comply with specified limits. As this problem frequently occurs some buyers have dispensed with buckwheat, for which there is no guarantee that it is free of phosphonic acid.
Residues spark controversy
Fosetyl-Al (sum of fosetyl, phosphonic acid and its salts) is