Found in the honey comb bluish and greenish colors puzzled beekeepers in the north-east of France, who decided to find out what caused this unusual coloring.
The investigation revealed that the blame for this is the biogas plant, which is located in the town of Ribeauvillé in Alsace. As it turned out, the bees flew to the plant and there enjoyed the dregs of chocolate production - M & M candy in colorful shells from the glaze, which attracted insects; Bees are smart enough when it comes to finding the best source of sugar.
As a result of intensive stains penetrated into the honey and made it unfit for sale.
Currently, the plant's management has brought beekeepers to apologize and promised that in the future will make the waste containers inaccessible to bees.