Canned sardines, tuna and preserved vegetables
Canned food plays a particular role on an island: it keeps for years without electricity and cushions supply gaps.
Canned sardines remain the anchor of this aisle. In oil, the flesh is richer and milder; in tomato sauce, it is lighter and pairs straight with rice. Either way, canning preserves the calcium and omega-3, with the bones becoming soft enough to eat.
The aisle also covers tuna, tomato paste and canned vegetables, cupboard staples that make a full meal possible with no cold chain.
Frequently asked questions
- Can the bones in canned sardines be eaten?
- Yes. High-temperature sterilisation softens them completely. They carry most of the calcium in the tin, roughly a third of the recommended daily intake per 100 g serving.
- Sardines in oil or in tomato sauce?
- In oil for richer flesh and a rounder taste, in tomato sauce for a lighter version ready to serve with rice. Protein and omega-3 content is nearly identical.
- How long does an unopened can keep?
- Several years at room temperature: the printed date is a best-before, not a use-by. A tin that is swollen, rusted or pierced should be thrown away unopened.
