For testing E.coli presence in poultry meat. The sealed, sterile bag, 375 x 500mm W x D, has a perforation for easy opening and will accommodate small turkeys, chickens and similar sized poultry. In use, the carcass is placed in the bag, buffer is added and the bag is then twisted shut and folded around the bird. The bird is then rotated several times to rinse the carcass thoroughly, and then the buffer liquid is removed for testing.