In Spain and Portugal, sardines, mackerel, cod, tuna, mussels and other seafood packed in cans aren’t emergency pantry items. They are highly valued for dining, and restaurants serve them. Now there’s a website selling Portuguese brands that has aggregated many of the tinned products, or conservas, from various producers to make shopping easier. The seafood is described as being sustainably harvested by small, long-established and often family-run companies.

Tin Can Fish, $19 to $48 for six to 12 tins, tincanfish.com.

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