"I shuck them, I cook them but I don’t eat them," says the international oyster-shucking champion, Deborah Pratt.

Deborah, who lives in Middlesex County, has captured the international oyster-shucking contest held annually in Leonardtown, Md., 14 times. She has represented the United States in the world’s oyster-shucking contest in Galway, Ireland, four times.

Recently Deborah, along with Clementine Macon, another champion oyster shucker and Deb’s sister, demonstrated the proper way to open an oyster at a training session held to prepare those opening oysters at the upcoming Third Annual Virginia Half-Shell Oyster Tasting. "Almost 5,000 raw oysters were shucked at the Oyster Tasting last year, and probably that many and more will be served this year," said Jackie Partin, a founder and president emeritus of the Tidewater Oyster Gardeners Association, based in Gloucester.

The sisters started the session by showing the right way to open an oyster from the lip, no...