Frequently Asked Questions
About the products
What is conservas?
Conservas is the Portuguese and Spanish word for tinned fish — but it describes something more specific than the English term suggests. It refers to a centuries-old tradition of preserving fish in tins using artisanal methods: fish caught and processed the same day, packed in good olive oil or butter, and sealed for long shelf life without sacrificing quality. A properly made conserva is a serious food product, treated as such in Portugal and Spain the way wine or cured meat is treated elsewhere. For a full explanation, see [What Is Conservas?] in our guides section.
Is tinned fish healthy?
Yes — and by a considerable margin. Tinned sardines, mackerel, and anchovies are among the richest dietary sources of omega-3 fatty acids available, delivering between one and two grams of combined EPA and DHA per 100g serving. They are also an excellent source of high-quality protein, vitamin D, vitamin B12, and selenium — nutrients a significant proportion of UK adults are deficient in. The tinning process preserves nutritional content well; a sardine tinned within hours of catch is often more nutritious than a fresh fillet that has spent days in transit. For a full breakdown, see Is Tinned Fish Healthy? in our guides section.
How long does tinned fish last?
Unopened, most tinned fish will last three to five years from the date of production — and often considerably longer. Premium conservas in olive oil from Portuguese and Spanish producers are known to improve with age, the fish continuing to cure slowly in the oil for years after tinning. Once opened, transfer the contents and oil to a non-metallic covered container and refrigerate. Eat within one to two days. For full storage guidance, see How Long Does Tinned Fish Last? in our guides section.
Do I need to cook tinned fish before eating?
No. Tinned fish is fully cooked during the tinning process and is safe to eat directly from the tin. The vast majority of premium conservas are eaten cold or at room temperature — on toast, in a salad, or straight from the tin with good bread. Some preparations warm the fish gently through a sauce or pasta dish, but this is finishing rather than cooking.
Is tinned fish sustainable?
The producers we stock take sustainability seriously. Rockfish is committed to British-caught, traceable seafood. Hevva works with sustainable British waters. Several of our Portuguese and Spanish producers hold MSC certification. Where we know a producer's sustainability credentials, these are detailed on the relevant brand and product pages.
What is ventresca?
Ventresca is the belly cut of the tuna — the richest, most marbled section of the fish, and the most prized cut in the conservas tradition. It is noticeably richer and softer in texture than standard tuna fillet, and is best eaten as it is rather than cooked into a sauce. For a full explanation, see What Is Ventresca Tuna? in our guides section.
Ordering and delivery
Where do you deliver?
We deliver across the UK.
How long does delivery take?
All orders are dispatched within one business day. Standard UK delivery takes two to three working days from dispatch. Once your order is on its way you will receive a confirmation email with tracking details.
How much does delivery cost?
Delivery is £3.95 on orders under £25. Orders of £25 and over qualify for free shipping.
What if something arrives damaged?
Tinned fish is robust but occasionally a tin can be dented in transit. If anything arrives in a condition you are not happy with, contact us at tinnedfishworld@gmail.com with a photo and we will resolve it promptly.
Using tinned fish
Where should I start if I have never tried premium tinned fish before?
Sardines are the right entry point for almost everyone — specifically, a good olive oil-packed sardine on thick sourdough toast with a squeeze of lemon. It is the preparation that most clearly shows what premium tinned fish is and why it differs from what most people have tried before. For a full beginner's guide, see Tinned Fish for Beginners: Where to Start in our guides section.
What is the best way to eat tinned sardines?
On toast is the simplest and most honest preparation — thick sourdough, toasted properly, with the sardines on top and a squeeze of lemon. From there, pasta, salads, and eating straight from the tin with bread are all worth exploring. For the full range of preparations, see How to Eat Sardines and Sardines on Toast: The Only Recipe You Need in our recipe and guide sections.
What should I serve with tinned fish?
Good bread is the most important accompaniment — something sturdy enough to carry the weight and oil of the fish. A squeeze of lemon, cornichons, and flat-leaf parsley cover most preparations. For a complete guide by species and preparation, see What to Serve With Sardines and How to Make a Tinned Fish Board in our guides section.
I want to give tinned fish as a gift. What should I choose?
A selection of three to five tins covering different species and producers makes an excellent gift for any food-literate recipient. For guidance by type of recipient and occasion, see Tinned Fish Gifts: A Guide for Food Lovers in our guides section.
Still have a question?
Email us at tinnedfishworld@gmail.com and we will get back to you as soon as we can.