There is a controversy happening between Spanish and French farmers due to the importation of black truffles from Spain to France. A journalistic investigation has revealed that French farmers are hiding the true origin of imported products by growing bamboo and reselling them as their own. A local trader admitted to buying Spanish truffles and selling them as French products, and it is difficult to check if French producers are also reselling Spanish truffles. The investigation also found that 80% of the black truffles collected in Teruel, Spain, end up in the French market, where they sell for a high price.