Portuguese sardines: the safest tinned fish

Portuguese sardines have long been appreciated by gourmets. They are distinguished by their delicate flavor, soft texture and traditional preparation. Such fish are perfect for everyday or exclusive recipes. In addition, an essential aspect: the extremely low mercury content ensures the safety of these fish. 

Sardines from the coast of Portugal are the most studied fish

Sardina pilchardus from the Portuguese coast is a well-studied fish species in Europe. In an extensive study, fish were collected along the entire Portuguese coast (~600 km), both in spring and autumn. The study analyzed 116 specimens - objective data allowing to assess the safety and mercury concentration of sardines.

How much mercury is in Portuguese sardines?

The study found that the mercury content in sardine muscle ranges from 0.0006 to 0.0016 mg/kg . These are extremely low levels – many times lower than the strict EU standards ( 0.25 mg/kg for sardines) . The study confirms that the safety of sardines is determined by real data.

• The lowest average level, 0.0006 mg/kg , was recorded on the northern coast of Portugal.

• This proves that these indicators are based on science and not advertising promises.

EU standards and sardine safety

According to European Union regulations, the maximum permissible mercury limit for sardines is 0.25 mg/kg . Comparison:

• 0.0016 mg/kg is about 156 times less than the EU limit.

• 0.0006 mg/kg is about 417 times lower than the EU limit.

The study involved fish between 13 and 25 cm long. These species are most commonly used in canned food, so these indicators reflect the true level of sardine safety for both gourmets and supporters of a healthy diet.

Biological and geographical factors ensuring sardine safety

The safety of these sardines is determined by biological and geographical factors . The Atlantic upwelling system constantly mixes deep and surface waters. For this reason, the amount of metals in the fish remains low. Sardines are small and of medium trophic level, so they accumulate fewer hazardous substances than large predatory fish.

What does sardine safety mean to the hobbyist?

By choosing canned Portuguese sardines, you gain not only a culinary advantage , but also a qualitative advantage. Studies confirm that the mercury content in these fish is negligible , and the difference from the EU limit is calculated hundreds of times. The safety of sardines ensures a reliable choice for everyday use.

Portuguese sardines are valued by gourmets and nutritionists - taste remains the most important criterion, but the safety and reliability of the sardine are no less important factors in the choice.

(source: ScienceDirect )