A HONG KONG company has recalled and destroyed its moon cakes because of quality problems.During a sample survey September 4, the Shenzhen Municipal Health Bureau found that the lotus seed paste moon cakes with double-egg yolk, produced by the Hong Kong Wing Hua Bakery Co. Ltd., were not up to standard, containing dangerous amounts of bacteria.An official of Wing Hua was quoted by yesterday’s Shenzhen Special Zone Daily as saying the case was an isolated one. The problem was caused by damage to the packing paper during transport, the official said. “We added no preservatives to the moon cakes and all the cakes were vacuum-packed.”All 200 cartons of Wing Hua moon cakes on the Shenzhen market had passed checks by Shenzhen’s quarantine authorities, the report said. However, the local health authorities are going to recheck the shipments, with the result expected to be known this week, the paper said.