Plate 16. A, removing the oysters from the cultch; B, an oyster shop in Lau Fau Shan-note the 3 standard sized cans; C, shucking the oysters (inset, an oyster hammer); D, dried oysters and bottles of oyster sauce for sale in Lau Fau Shan; E, a pile of empty oyster shells; F, dried cultch awaiting re-use.