FAQ (Frequently Asked Questions)

Is it healthy to consume canned fish? Yes. Canned fish is a practical source of high-quality protein, Omega-3, vitamins (such as D and B12), and minerals. When part of a balanced diet, it contributes to a healthy lifestyle.

Does canned fish contain chemical preservatives? No. Our preserves contain no preservatives. Preservation is achieved through the production process: after the sauce (or olive oil) and the fish are tinned, the can undergoes a thermal process (sterilization). The lid is sealed using a double-seam method, creating an airtight seal.

Is Omega-3 preserved in the canning process? Yes. Omega-3 fatty acids are heat-stable and remain largely intact, especially in fish like sardines, mackerel, and salmon.

How do I know if a preserve is spoiled? Do not consume it if the can is swollen, leaking, rusted, or if the product has an abnormal odor or taste after opening.

Which is the healthiest canned fish? Sardines, mackerel, and salmon stand out for their high Omega-3 and calcium content (especially when eaten with bones).

Should I discard the liquid from the can? No. We use premium sauces and first-quality olive oil. You should enjoy their delicious flavors and nutritional properties.

Does 100mistérios have its own factory? Yes, the cannery is located in Parafita, Porto Metropolitan Area, Portugal.

Why is the packaging so different? We believe the content deserves an aesthetic to match. Each product features an exclusive illustration by Portuguese artists, turning the tin into a collector's item or a prestigious gift.

How are the products made? We use the ancestral Artisanal Mediterranean Method. The fish is caught sustainably, worked by hand, and pre-cooked outside the tin. This ensures that the flavor of the olive oil is not diluted by the fish's natural juices, resulting in a smoother, more refined product.

Are they sustainable? Yes. Our brands use sustainable fishing and comply with EU quotas. Look for certifications like the MSC (Marine Stewardship Council).

What does "Organic" mean? It means all accompanying ingredients (olive oil, tomato, garlic, etc.) come from certified organic farming. Since sea fish is wild, the seal guarantees the total purity of the other components.

Why are prices higher than supermarket brands? The cost reflects four factors: ingredient quality, sustainable fishing, small-scale artisanal production, and fair pay for local fishermen.

Is it ultra-processed? No. It is considered a processed food, not ultra-processed. With no preservatives, it is a healthy and natural option.

What makes Portuguese Gourmet preserves different? Respect for closed fishing seasons, strict quotas, and the artisanal pre-cooking process that removes excess moisture and fat, ensuring a firm texture and concentrated flavor.

What is the shelf life? Generally between 3 to 5 years.

How to store after opening? Transfer to a non-metallic, closed container and refrigerate for up to 24–48 hours.

Do sardines have scales and bones? Most scales are removed during cleaning, though some may remain. The bones are so soft they melt in your mouth and are a great source of calcium.

How to eat the preserves? The preserves can be eaten directly from the tin or incorporated into recipes such as toast, salads, pasta dishes, or risottos. Gourmet flavors also pair beautifully with light wines and cold appetizers.

Does 100mistérios have its own factory? Yes, the cannery is located in Parafita, in the Porto Metropolitan Area, Portugal.

What differentiates Portuguese gourmet preserves from others? The main differences lie in the fishing and production. Our industry strictly respects "defeso" periods (when fishing is prohibited to allow reproduction). Portugal has very rigorous fishing quotas. Furthermore, the production is artisanal; the salt is added in controlled brine, and the fish is pre-cooked outside the tin. This allows excess moisture and fat to be discarded, ensuring a firm texture and a more concentrated flavor, unlike industrial methods where the fish is cooked raw inside the tin.

When to consume them? They are an excellent choice for several moments:

• To prepare a healthy and quick meal.

• For a gathering with friends.

• As a practical, high-protein meal for outings, hiking, boat trips, motorhomes, and camping.