National Clams on the Half Shell Day – March 31, 2027

Expected National Clams on the Half Shell Day Deals

While we await official 2027 promotions, history shows that seafood restaurants and markets often feature special deals for National Clams on the Half Shell Day. Look for discounts on raw bar platters at chains like Legal Sea Foods and Red Lobster, though the latter may focus more on cooked preparations. Specialty seafood markets such as Whole Foods Market and local fishmongers may offer price breaks on fresh clams. Condiment brands like Tabasco and Gold’s Horseradish could run promotions on their sauces, perfect for pairing. Keep an eye out for shucking tool sales from kitchenware brands like OXO. We will update this page with confirmed live deals as March 31 approaches.

History of National Clams on the Half Shell Day

Clams are formally known as bivalve mollusks; tiny, plump, and meaty sea animals that first appeared around 510 million years ago. They live in freshwater or marine habitats and are fished as one of the favorite shellfish alongside oysters and scallops.

The shellfish is cooped up in two shells, connected by a hinge joint and an internal or external ligament. There are more than 150 edible species of clams in the world and the total number of living species is somewhere around 12,000. We find most of our favorite species in the Atlantic Ocean or the Gulf Coast, including the hard-shelled quahog and mid-sized cherrystone clams, as well as the soft-shell clams that are usually steamed and the surf clams.
Some of the species in the Pacific Ocean include the littleneck, Manila, and butter clams.

Giant clam species in the South Pacific Ocean weigh 440 pounds, are inedible, and can live up to 100 years. Unfortunately, they still remain endangered. Clams have played an important role in the diet of coastal people. They live buried deep in the seabed for half of their lives and are dug out at low tide to be cooked.

While the true history of the creation of National Clams on the Half Shell Day is unknown, the famous clams casino dish with its blend of crispy breadcrumbs and topping of bacon and bell peppers dates back to 1917. It was found in the Little Casino at Narragansett, Rhode Island where the maître d’hôtel served the special dish to her guests and named it after the hotel. When diners tucked into the plump, smoked meat and bit into the stuffed topping, they were blown away. The dish was an instant success and spread across the menus of numerous restaurants in the United States.