Belon (Maine) oyster illustration
US East Coast Researched

Belon (Maine)

Ostrea edulis

Rare wild European Flat oyster harvested from Maine's cold waters. One of only 5,000 harvested annually. Intensely metallic and mineral with bold coppery flavors and umami notes—powerful and unforgettable.

Brininess
Shell flat

Flavor Profile

Brininess 2/5
Sweetness 2/5
Minerality 5/5
Creaminess 3/5

Primary Flavors

Secondary Notes

Finish

Powerful, metallic, coppery with tannic accent

Expert Notes

Maine Belon oysters are among the most powerful and distinctive oysters on the planet. Transplanted European Flats that went feral in the 1950s, these wild-harvested rarities deliver an intense, shocking flavor profile redolent of zinc, copper, and umami. With only 5,000 harvested annually, they are one of the rarest oysters in the world. Less briny than their Eastern oyster cousins, they showcase a potent metallic character with sweet to flinty overtones and a crisp bite to plump meats. Not for the faint of heart or beginners—you'll either love them or hate them, but they will make an unforgettable impression.

Origin & Characteristics

Species
Ostrea edulis
Native to
Europe
Grown in
Damariscotta River, Maine, Boothbay Harbor, Maine, Isle Au Haut, Maine
Size
Medium to Large (3-8 inches)
Shell Color
Black-and-white, dapper
Meat Color
Creamy to light brown

Perfect Pairings

Best Seasons: Fall, Winter, Spring

What Experts Say

Across 10 sources, tasters describe this oyster as:

Unique notes: walnut-skin, iodine, zinc, umami, coppery, brassy

"These wild oysters are as powerful as any on the planet, redolent of fish and zinc and umami—not for the faint of heart."

powerfulfishzincumami

"Intense and delicious, with powerful brine against a tannic walnut-skin background. Amazing full-contact experience. Crunchy texture like no other oyster."

intensepowerfulbrinytannicwalnut-skin

"Minerally, metallic, little tiny bit briny seawater taste, easier to shuck than others. Absolutely loved these!"

minerallymetallicbrinyseawater

"The metallic aftertaste was so off-putting that my lovely wife and I both – independently of each other – were worried that we'd gotten a bad oyster."

metallic

"Mild brininess, a potent coppery taste, and a tannic accent with a crisp bite. They are wild-harvested and not for beginners. Their flavor is powerful and distinct."

mildbrinycopperytanniccrisp

"They are, quite simply, the most intense, overwhelming, unforgettable food you are likely to eat anytime soon. They are the Sean Penn of oysters–scary, but you feel compelled to keep paying attention. Chugging iodine, maybe. With lemon, all the iodine disappear, leaving something beautiful and, frankly, indescribable in its place. Uplifting, aromatic, and strange."

intenseoverwhelmingiodineupliftingaromatic

"Compared to other oysters, Belons feel like the luxury model. Scalloped shells in Cartier colors."

luxury

"Meaty and metallic."

meatymetallic

"The Belon, with its large, round, scallop-like shell, is an oyster species native to Europe with an unusual and powerful metallic flavor. That flavor lasts, so Belons are best enjoyed with lemon."

powerfulmetallicunusual

"They are renown for their unique flavor profile."

unique

"No oyster comes close to the power of the European Flat. It is brassy, in every sense of the word. Brassy because it tastes like metal, and because it is shamelessly bold, and because when it hits your tongue it slaps you awake like the opening blast of a bugler's reveille."

powerfulbrassymetalbold

About the Farm

Nonesuch Oysters

Abigail Carroll of Nonesuch Oysters successfully grows Belons in Maine with support from the Down East Institute, and is now the main supplier to Grand Central Oyster Bar.

Cultivation Method
wild harvest
Visit Farm Website →

History & Background

European Flat oysters (Ostrea edulis) were brought from the Netherlands to Boothbay Harbor, Maine by scientists in the 1950s as an alternative cultivation source. The cultivation efforts were eventually abandoned, but the oysters went feral and established wild populations in Maine's estuaries, spreading as far south as Cape Cod Bay and Duxbury Bay, Massachusetts.

True Belons come from the Belon River in Brittany, France, and have AOC protected name status. The Maine oysters are more accurately called European Flats, though they are commonly marketed as Belons. Native Americans harvested oysters from the Damariscotta River for a millennium, as evidenced by hill-sized middens along its banks.

Did You Know?

  • Only approximately 5,000 Belons are harvested annually in Maine, making them one of the rarest oysters in the world
  • Belons are an entirely different genus (Ostrea) from most other North American oysters (Crassostrea)
  • They have a rust-colored mantle and resemble 'the love child of a scallop and an oyster'
  • The French describe their finish as 'noisette' (hazelnut), though American experts find this description puzzling
  • Belons are often described as 'the Sean Penn of oysters—scary, but you feel compelled to keep paying attention'