Pembrokeshire Rock Oysters and Pembrokeshire Native Oysters on a plate and wooden serving board

Pembrokeshire Native Oysters PGI & Pembrokeshire Rock Oysters PGI

Pembrokeshire Native Oysters are a marine delicacy rooted in tradition and nature; a prized product of the Daugleddau Estuary, where the nutrient-rich waters blend with fresh flows from the Preseli Mountains.  Cultivated using time-honoured and sustainable methods, these oysters develop a distinctive flavour or "merroir" influenced by the estuary's unique environment and centuries of oyster farming heritage.

The journey of a Pembrokeshire Native Oyster begins with bio-secure seed or part-grown oysters sourced from trusted hatcheries.  Seed oysters are placed in mesh bags on trestles, suspended above the seabed to ensure optimal growth.  During the 3 to 5-year cycle, oysters are carefully graded and re-bagged to maintain low densities, promoting healthier growth and a robust shell.  Survival rates are high, with 80% of oysters thriving in their first six months.  Hand-harvested during low-tide spring tides, they are then washed, depurated if needed, and packaged, ensuring premium quality for every oyster.

The estuary's complex mix of fresh and saltwater, combined with its diverse geology and seagrass habitats, enriches the oysters with minerals and plankton.  This "merroir" imparts the renowned “complex umami punch” and “meaty ozone flavour” with marine and cucumber overtones.  Seasonal phytoplankton blooms further enhance the oysters' flavour and texture, contributing to their distinctive silvery finish and firm bite.

Oyster farming in Pembrokeshire dates back to the 17th century, when the Daugleddau Estuary was a vital centre for native oyster fisheries.  Today, farmers combine traditional knowledge with sustainable practices, ensuring minimal environmental impact.  As a form of Restorative Aquaculture, oyster farming enhances water quality, biodiversity, and the overall health of the estuary's ecosystem.

Sought after by chefs and gourmets, Pembrokeshire Native Oysters PGI are a premium, low-volume product, celebrated for their vibrant flavour and artisan production.  Their traceability and strict adherence to environmental standards make them a symbol of quality, sustainability, and regional pride.

Recognised under the Protected Geographical Indication (PGI) status, Pembrokeshire Rock Oysters are celebrated for their origin and superior quality, embodying the essence of Wales’ coastal heritage. Perfect for seafood lovers and gourmet enthusiasts, they provide a true taste of the Atlantic Edge, bringing the purity of Pembrokeshire’s waters to your plate.

The Daugleddau Estuary, part of the Pembrokeshire Marine Special Area of Conservation, provides an ideal environment for oyster farming, where the complex mix of mineral-rich freshwater and clean Atlantic seawater contributes to the oysters exceptional characteristics​. This unique setting has earned them a coveted Class A shellfish classification, making them safe to enjoy straight from the sea​. 

The exclusive environment also creates a distinct "merroir" – the flavour profile shaped by the oysters' surroundings.  This includes briny freshness with delicate notes of cucumber, citrus, and grassy tones, finished with a clean mineral quality.  This combination of factors makes Pembrokeshire Rock Oysters a sought-after delicacy with a complex, satisfying flavour.​

Pembrokeshire Rock Oysters are distinguished by their teardrop-shaped, deeply cupped shells, often exhibiting purple or dark stripes from algal pigments, making them visually distinctive.  The cultivation process is meticulous, involving hand-graded oysters grown from seed in under two years using modern oyster bag systems.  This sustainable approach supports local biodiversity, and the commitment to environmental care and high-quality production reflects in every oyster​.

Farming of Pembrokeshire Rock Oysters began in the 1980s and has steadily grown in popularity since, with current production nearing 200,000 oysters per year.  These oysters are prized for their exceptional flavour and are a highlight of local oyster festivals, with many chefs showcasing them in restaurants across the region​.

Served fresh with lemon or Tabasco, or grilled with toppings like spinach and bacon, Pembrokeshire Rock Oysters are a premium, low-volume product, commanding high value on menus.  Their consistent quality and origin are protected under the PGI label, celebrating the natural bounty of Wales' coastal waters and its rich maritime heritage.