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Loch Duart Salmon Fillets



Showing availability for delivery on Thursday 2nd December

  • Sushi grade
  • Farmdrop recommends


Many of our customers ask for farmed salmon, so we’ve worked on supplying some of the best available. Farmed fish are a contentious choice however, so here are our thoughts on this complex issue. Sole of Discretion generally encourages people to move away from farmed fish and eat wild fish as an alternative, from both a public health point of view and damage to the marine environment.

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Sole of Discretion says

The Environment: Farmed fish are often marketed as being the sustainable choice, but nothing could be further from the truth for many carnivorous species, such as salmon. Unlike sheep or cows that turn grass into animal protein, salmon are voracious carnivores and eat other fish in their natural diet. In the wild, they feed on shrimp and small fish, and it’s the shrimp that gives them their incredible colour. Farmed salmon, in some of the poorly managed farms, can eat as much as 12kg of wild fish for every 1kg of farmed salmon produced, clearly a drain on wild resources (though we are not advocating replacing fish in a salmon’s diet with yet more vegetable oil!). As wild fish stocks dwindle, the salmon farmers have tried to find alternatives in their feed, ranging from algae to insects, and increasingly, vegetable oil. Like any form of farming, feeding an animal something that doesn’t appear in its natural diet has its risks, (think BSE). While replacing fish with vegetable oil in a salmon’s diet might help alleviate the demise of wild fish stocks, we question what health benefit it might have for the consumer, not to mention the impact it has on taste. Just as importantly, there is an ethical question here, too; many of the wild fish turned into fishmeal are caught by developed country’s industrial fleets in the developing world’s fisheries. There are plenty of examples of European boats buying the fishing rights to fish off the fertile north African coast, leaving the locals in Mauritania, Senegal and Morocco no longer able to fish in their own waters. One wonders if this contributes to some of the economic migration, with young men unable to earn a living in their own fishing communities being forced to look further afield for work, risking their lives for the chance of a better future in the West. Of the annual 50 million tonnes of fish landed globally per year by the industrial fleets, over half, 26 million tonnes are turned into fishmeal and oil*. While farmed fish may be considered a sustainable choice for the privileged developed world, clearly from the developing world’s point of view, taking their fish to turn into fishmeal to produce cheap salmon is not an equitable share of resources.

Pollution is another problem. The salmon farms create pollution from the feed, fish faeces and chemical introduction which all has impact on the surrounding marine environment. There are also questions over the problems of farmed salmon escaping and breeding with wild fish impairing their future ability to breed.

Public health: Farmed fish are also vulnerable to disease, and the chemicals used to prevent the growth of lice or antibiotics used to treat other illness are potentially damaging to human health. Growth hormones to shorten the time to harvest are also a concern for public health. Plus, many intensively reared salmon producers put a high ratio of vegetable oil in the diet, because it is cheaper than fish protein and helps speed growth.

However, there is a balance to be drawn when considering wild and famed fish from the point of view of health, as many wild species are now suffering from the effects of pollution in the sea, and carry high levels of mercury or PCBs in their flesh. As mercury and PCBs accumulate, the larger, older fish tend to carry these harmful chemicals, so tuna steaks and swordfish for example, two species near the top of the food chain, are often the most adversely affected by chemical pollution and should be consumed in small quantities. Environmental contaminants (PCBs, mercury, dioxins etc. ) are stored in the fat cells of all animals (including humans). Reducing the oil content in the salmon’s feed reduces the possible exposure to environmental contaminants, which are used heavily in cheaper salmon production plants.

Another benefit in limiting the fish oil content in the salmon feed is that the fish are receiving a diet that is as close to that which they would encounter in nature and as a result the fish grow at a natural rate and will exhibit enhanced muscle development and a brighter, cleaner flavour. The high-energy feeds used in intensive conventional farming will produce a market-sized fish in considerably less time. But the fastest way to get fish to market is to genetically modify them, and that’s what happened in 2015 when the US’s Food and Drugs Administration approved the introduction of the world’s first genetically modified salmon.

Loch Duart is conventionally farmed salmon but is farmed ‘ as close to nature as possible’. Loch Duart salmon feed mostly on wild capelin. They firmly believe that you only get the quality and healthfulness (omega-3 etc) by using plenty of marine ingredients and have worked hard on finding sustainable inputs for their feed. The capelin is essentially a byproduct, as the fish are caught for their roe, and the flesh and carcass that go into Loch Duart’s fishmeal are a waste product. This provides Loch Duart with a good source of marine input in their fishmeal, and the capelin come from a quota controlled fishery in Iceland. It is better for the salmon as it delivers a more natural diet for the salmon’s metabolism than a vegetable-based diet, plus it gives Loch Duart some of the industry’s highest levels of omega-3 and low levels of omega-6. They never use growth promoters and have never used antibiotics. They have a low stocking density of 15kg/cubic metre, as compared with the organic standard of 10kg/cubic metre, but lower than conventional farms of 20kg. To avoid marine pollution, Loch Duart use the ‘Swim Through’ to clean the nets, avoiding the use of anti-foulants. The fish swim into clean empty pen as the nets they are in are raised, the marine growths weighing down the original net dry and fall back into the water. Thus what comes from the sea goes back to the sea, a natural method that is better for the environment.

Storage Information and Shelf-life

Keep in original packaging & refrigerate.

Shelf Life

Minimum 2 days

Cooking Instructions

To create an Asian dish with wonderfully intense flavours, marinate in rich and salty soy sauce, spicy fresh red chilli, spring onions and ginger for one hour prior to cooking. Once ready, place the salmon in an oven for 10-15 minutes at 200'C and serve with sticky white rice.


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Meet Sole of Discretion


We provide the ability for the fishers to land, process and sell their own fish, offering full traceability through the supply chain - a first in the UK. By working only with small-scale boats of under 10ms in length, there is significantly less damage to the marine environment than from the large trawlers. The fishers are paid a fair price, agreed in advance - thereby creating a market mechanism for rewarding those fishers doing the least damage to the environment. Our fishers land late in an evening, or early in the morning, we pack and process during the day usually into 300gm fillet packs, and put the fish on the Intercity train to Farmdrop customers in London for same-day delivery. It’s hard to beat that freshness, and because we use only static nets or hand liners, the quality is unbeatable. We trace back to each boat, and all our retail packs state the name of the fisher and method of catch. We also blast freeze our fish - this is an integral part of our ethos: the small-scale fishers are often unable to get out in poor weather, so in order to meet customer demand and be able to continuously supply, we sell their fish frozen when they are not able to get out to sea. In blind tastings, blast frozen, freshly landed fish tasted really good compared to fresh fish that is a few days old, in fact, many people preferred the frozen! We have recently been audited by the Soil Association, and are the UK’s first wild fishery permitted to use their logo. We also work with Exeter University’s marine biology department to help verify the science behind what we do, and videos and links to their research is publicly available.

Find out more

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