Sardines smell fishy due to trimethylamine (TMA), a compound produced as oily fish break down, combined with their naturally high fat content, which oxidizes and creates strong odors. Their diet (bottom-feeding) and the canning process (oil, brine, sauce) can also intensify this smell and flavor, which is why acid (lemon) or milk soaks help neutralize the TMA and make them less pungent.
Strong olfactory cues: Sardines have a pronounced fishy, oily smell produced by volatile amines (trimethylamine) and oxidized polyunsaturated fatty acids. Humans evolved strong odor-driven aversions to cues that historically signaled spoilage or toxins, so intense fishiness often elicits disgust.
Tips for minimizing sardine smell in the kitchen?
You can kill most of the fishy taste by soaking them in milk for about 20-30 minutes before you use them.
Scombroid Fish Poisoning
This including mackerel, tuna, king fish, herring, sardines, marlin, anchovies and bluefish. Affected fish often have a metallic or peppery taste. Scombroid poisoning symptoms usually start within 30 minutes of eating.
Uncooked spoiled seafood can have sour, rancid, fishy, or ammonia odors. These odors become stronger after cooking. If you smell sour, rancid, or fishy odors in raw or cooked seafood, do not eat it. If you smell either a fleeting or persistent ammonia odor in cooked seafood, do not eat it.
Soak the fish in milk for about 20 minutes. The casein in the milk bonds with the TMA and extracts some of it, therefore reducing the fish odor. Rub an acidic ingredient like lime, lemon, or vinegar on top of the fish.
Because sardines contain purines, which break down into uric acid, they aren't a good choice for those at risk of kidney stone formation. The high sodium in sardines can also increase calcium in your urine, which is another risk factor for kidney stones. Some people are allergic to fish, including sardines.
What are the Least Fishy-Smelling Fish?
Worst: Fish High in Mercury
Imported swordfish. Imported marlin. Shark. Tilefish.
A Flavor Beyond the Smell
Enthusiasts of the dish compare it to the enjoyment of aged blue cheese—its rich umami flavor can be appreciated by those with adventurous palates. They insist that the taste of surströmming far surpasses its infamous odor, making it a delightful experience for those who dare to try it.
Sauté in oil, garlic, onions, and tomato with a bit of lemon juice, salt, and pepper. Gets rid of fishy smell and taste, and eat with a bowl of rice!
Sardines are also rich in essential nutrients that reduce inflammation, support bone health, and improve cardiovascular outcomes. Unlike fish oil supplements, sardines provide nutrients in a whole-food form that is easily accessible and well-tolerated.
Pre-cooked pasta in sauce is one of the unhealthiest canned foods. While they might be tasty meals, the reason they have that addictive flavour is due to high levels of sugar and salt. For example, a can of Heinz Alphaghetti contains 1,490 mg of sodium and 18 g of sugar.
Canned sardines are often a healthier choice than canned tuna, the experts note. While both are high in protein, sardines are more nutrient-dense. Sardines have a higher combined omega-3 (DHA and EPA) content than tuna fish, says Largeman-Roth. Sardines are also lower in mercury than tuna.
The source of the fishy smell and taste of saltwater fish like sardines is a chemical known as trimethylamine (TMA), which acid can neutralize. The science behind acid's effectiveness lies in pH and the desired balance between acids and bases.
The rule 10-Minute Rule or Canadian Cooking Method is simple: cook fish for 10-minutes per inch of thickness. Then, flip the fish only once, halfway through the cooking time. Whether you plan to follow a recipe or not, start by measure the thickest part of the fish with a clean ruler.
Description. Trimethylaminuria is a disorder in which the body is unable to break down trimethylamine, a chemical compound that has a pungent odor. Trimethylamine has been described as smelling like rotten or decaying fish.
Fish is soaked in milk before cooking to remove any strong fishy odor or taste, as the protein in the milk, called casein, binds to the compounds responsible for the fishy smell, effectively extracting it from the fish flesh and leaving a cleaner flavor behind. Soak at least 20 min, up to 8 hrs.