Sardines and small sardines

Yes, quality canned sardines can improve with age, developing more complex organoleptic characteristics similar to aged wines. This phenomenon, known in the world of gourmet preserves as "aging" or "vintage," only occurs when certain quality conditions are met. During prolonged storage, the extra virgin olive oil slowly penetrates the fish fibers, softening the bones (which become completely edible after several years), smoothing the flesh, and creating a perfect integration between fish and oil. The flavor rounds out, losing any slightly metallic or aggressive notes of the fresh fish and gaining deeper, more elegant, and complex nuances. The texture transforms from meaty to silky, almost buttery. However, this process only occurs in preserves made with exceptional standards: top-quality fresh sardines caught at their peak, high-quality extra virgin olive oil (never seed oils), careful hand-packing, and a perfect airtight seal. Industrially canned goods made with seed oils or low-quality sardines don't improve; they simply age and degrade. Sardines generally reach their peak between 2 and 5 years after canning, although some can be stored for 10 years or more. Storage conditions are crucial: a cool ( 10-20°C ), dry, dark place, without sudden temperature changes, with the cans stored horizontally. Some Spanish and Portuguese artisanal canneries have adopted the vintage model, indicating the year of catch and canning on the can, and offering numbered limited-edition vintage series that are sold as collector's items for €20-30 or more. At Bacalalo, we can advise you on which canned goods deserve to be aged and how to create your own canning cellar.

Although canned sardines are available year-round thanks to their long shelf life, the quality of the canned fish depends on when it was caught. The best season for sardine fishing is from June to November, a period that coincides with the sardines' intensive feeding phase before winter spawning. During these summer and autumn months, sardines feed voraciously on plankton and small crustaceans, accumulating fat reserves that can reach 15-20% of their body weight. This fat, rich in omega-3 fatty acids, is responsible for the intense flavor, unctuous texture, and silvery sheen characteristic of sardines caught at their peak. Sardines caught during this period have firmer flesh, are larger, and have the ideal organoleptic profile for high-quality canned goods. In contrast, spring sardines (March-May), caught after winter spawning, are leaner and have a lower fat content. Although still nutritious, their flavor is milder and their texture less juicy. Young sardines are typically caught at this time of year. To identify sardines at their peak, look for canned goods that indicate the month or season of capture on the label. The best artisanal canneries specify "summer sardines," "caught in September," or " 2024 season," allowing consumers to verify that the fish was caught at its best. Some even offer limited-edition series of seasonal sardines, similar to wine vintages. As for when to buy for consumption, any time is a good time: quality canned goods maintain their properties for years. If your goal is to age the sardines, buy them freshly canned (check the date) and store them under optimal conditions for 2-5 years. If you prefer to eat them young, any canned sardine in our Bacalalo catalog is ready to enjoy.

Without a doubt, extra virgin olive oil is far superior to sunflower oil (or other seed oils) for canned sardines, both nutritionally and in terms of gastronomy and long-term preservation. Quality sardines should be packed exclusively in extra virgin olive oil. Nutritional reasons: extra virgin olive oil provides monounsaturated fatty acids (mainly oleic acid), which are beneficial for cardiovascular health, along with natural antioxidants (polyphenols, vitamin E) that protect against oxidation. Seed oils (sunflower, soybean), although more economical, are rich in omega-6 polyunsaturated fatty acids, which in excess can promote inflammatory processes, and lack the antioxidants found in olive oil. Organoleptic reasons: extra virgin olive oil has its own distinct flavor that perfectly complements the briny taste of sardines, creating a complete gastronomic experience. Sunflower oil, on the other hand, is practically tasteless and contributes nothing to the flavor profile of the canned sardines. Preservation and aging reasons: this is the crucial point. Only sardines packed in extra virgin olive oil can age and improve over time. The antioxidants in olive oil protect the fish's omega-3 fatty acids from oxidation, allowing the preserves to evolve positively for years. The olive oil slowly penetrates the fish fibers, softening bones and creating that characteristic silky texture of aged preserves. Seed oils, being more easily oxidized, do not allow this process; the preserves simply age and degrade, developing rancidity. Price: sardines in sunflower oil are cheaper (you can find them for €2-3 ), but this reflects both the lower cost of the oil and, generally, the lower quality of the fish. Sardines in extra virgin olive oil cost from €5 to €15 or more, but offer a completely different experience. At Bacalalo we only offer sardines in olive oil, guaranteeing nutritional and gastronomic quality and aging potential.

Yes, canned sardines are exceptionally healthy and are considered a seafood superfood. They are one of the richest sources of long-chain omega-3 fatty acids (EPA and DHA): a 100-gram can can provide 2-3 grams of omega-3, far exceeding the recommended weekly intake. These fatty acids reduce triglycerides, improve cardiovascular health, protect against neurodegenerative diseases, and have potent anti-inflammatory properties. Unlike plant-based omega-3s (from seeds), those from oily fish have greater bioavailability. Sardines provide 20-25 grams of high-biological-value protein per 100 grams, with all the essential amino acids, easily digestible, and perfect for athletes or the elderly. An extraordinary characteristic is their calcium content: the bones of canned sardines (especially aged ones) soften and are completely edible, providing 300-400 mg of calcium per can, equivalent to a glass of milk. This is especially valuable for people with lactose intolerance or osteoporosis. Sardines are also one of the few significant food sources of vitamin D: a serving can cover 50-100% of the daily requirement, essential for calcium absorption, immune health, and mood. They are also rich in vitamin B12 (for the nervous system), niacin, selenium (an antioxidant), phosphorus, iron, and iodine. Considerations: the sodium content can be high, especially if salt is added, so people with hypertension should moderate their consumption. Sardines in extra virgin olive oil have a healthier lipid profile than those packed in seed oils. A 100-gram can of sardines in oil provides approximately 200-250 calories, a reasonable amount for such a nutritionally dense food. In short, canned sardines are an exceptional choice for a healthy diet, especially a Mediterranean diet, providing essential nutrients that are difficult to obtain from other sources.

Canned sardines have an exceptionally long shelf life. The "best before" date printed on the cans is usually 3-5 years from the packaging date, but this is a conservative estimate established by regulations. In reality, quality canned sardines, stored correctly, can last for decades without losing food safety or quality. In fact, as we've explained in other answers, quality sardines improve with age during the first 5-10 years or even longer. The key lies in the storage conditions. To maximize shelf life and allow for optimal aging, follow these guidelines: store the cans in a cool (ideally 10-15°C , although up to 20°C is acceptable), dry (relative humidity below 70% to prevent oxidation of the metal can), dark place (light degrades the oils), and away from sudden temperature changes. Avoid garages, attics with high summer temperatures, or very humid basements. Place the cans horizontally so the oil is always in contact with all the fish. Under these conditions, sardines in extra virgin olive oil can be perfectly preserved for 10, 15, or even 20 years or more. There are collectors of canned goods who own (and consume) sardines that are decades old. Before opening an old can, always check its condition: it shouldn't be bulging, it shouldn't have deep rust or holes, and there shouldn't be any liquid leaking out. When opened, the oil should be clear (there may be natural sediment), the smell should be pleasant, like fish and oil (never rancid or putrid), and the sardines should retain their shape, although the texture will be very soft in very old cans. If you detect any abnormality (unpleasant smell, bulging can, mold), discard the can. Once opened, transfer the sardines to an airtight glass container, cover them with their oil, and store them in the refrigerator, consuming within 3-4 days . Never leave the sardines in the open can for storage, as the metal may rust. At Bacalalo, we indicate the packaging dates of our premium canned goods so you can decide whether to consume them young or store them to age.

There isn't a single "best" brand of canned sardines, as the choice depends on your personal preferences, budget, and intended use. However, several leading Spanish brands stand out for their artisanal quality, tradition, and consistency. Conservas Olasagasti, although better known for its Cantabrian anchovies, produces very high-quality sardines. Founded at the end of the 19th century by Salvatore Orlando (of Sicilian origin) and Simona Olasagasti, and currently run by Matteo Orlando in Markina (Bizkaia), it embodies Basque artisanal tradition. Their Cantabrian sardines are packed by hand in extra virgin olive oil, using large, seasonal sardines. These premium preserves are ideal for eating straight or for aging. Price: €8- €15 . Ideal if you're looking for top quality and Cantabrian tradition. Galician preserves like Dardo and Coquet represent the centuries-old Galician canning tradition. Coquet, a historic brand, offers sardines prepared with recipes passed down through generations, many of them fried before canning (a traditional Galician method that gives them a characteristic toasted flavor). Excellent value for money: €4- €10 . Ideal if you're looking for authentic Galician tradition at an affordable price. Artisan canned goods and new generations: in recent years, new-generation canneries have emerged that reinterpret classic recipes with gourmet approaches, offering sardines with flavored oils, smoked sardines, or numbered vintage presentations. Prices: €10- €20 or more. Ideal for gourmet enthusiasts seeking unique experiences. Portuguese canned goods: although not Spanish, Portugal is the other major player in canned sardines. Centuries-old Portuguese brands have a worldwide reputation and a highly developed vintage culture. Occasionally available at Bacalalo . In short, if you're looking for top-quality artisanal products from the Cantabrian Sea, Olasagasti; If you prefer Galician tradition at a better price, try Coquet or Dardo; if you want to experiment with artisanal preserves, explore our special editions. At Bacalalo, with over 30 years of experience, we only offer brands that meet our quality standards, so any choice from our catalog will be a good one.