Cured Salmon — Salt, Sugar, and Time

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Curing salmon is equal parts salt and sugar by weight, applied at 8-10% of the fish weight, pressed onto the flesh and left to work for 24-48 hours under refrigeration. A 1kg fillet receives 80-100g of cure mix — 40-50g fine sea salt, 40-50g white sugar — spread evenly across the flesh side, wrapped tightly, and weighted. This ratio is where the dish lives or dies: too little cure and the fish remains raw and perishable; too much and it becomes unpleasantly dense, dry, and aggressively salty. The technique draws moisture through osmosis, firming texture, concentrating flavour, and creating an environment inhospitable to harmful bacteria. Quality hierarchy: 1) Wild King Salmon (Chinook) or wild Sockeye, cured with precisely measured salt and sugar, laid on a bed of fresh dill and crushed juniper, pressed under even weight for 36-48 hours — the flesh is translucent, deeply coloured, firm enough to slice paper-thin, with a clean oceanic flavour balanced by gentle salinity and sweetness. 2) High-quality farmed Atlantic salmon (Scottish or Norwegian), cured by the same method — fattier, milder, silkier in texture, but lacking the wild fish's mineral complexity. 3) Any salmon cured without proper measurement — salt and sugar thrown on by eye — resulting in uneven cure, mushy spots, and unreliable food safety. The distinction between gravlax and lox matters. Gravlax (Scandinavian) is cured with salt, sugar, dill, and sometimes spirits — a brief cure (24-72 hours) producing a firm, translucent product sliced thin and served with mustard-dill sauce. Lox (from the Yiddish laks) traditionally refers to salmon belly cured in heavy salt brine for weeks — a preservation technique producing intensely salty fish requiring soaking before eating. Modern "lox" sold in delicatessens is usually cold-smoked salmon, not true brine-cured lox. Species selection is foundational. King Salmon (Oncorhynchus tshawytscha) — the largest Pacific species, high fat, deep red-orange flesh, buttery and complex. The premier curing fish. Wild Sockeye (Oncorhynchus nerka) — leaner, intensely red, with an assertive, iron-rich flavour that pairs exceptionally with dill and juniper. Coho (Silver) — moderate fat, milder, a solid middle ground. Farmed Atlantic (Salmo salar) — consistent, mild, forgiving of technique errors because higher fat masks slight over-curing. The dill bed: lay thick dill fronds on the flesh before applying the cure, and another layer on top. Dill is not optional — its aromatic oils (carvone, limonene) penetrate during curing, contributing the signature Scandinavian flavour. Add crushed white peppercorns and crushed juniper berries (Juniperus communis) for a resinous, gin-like note. Texture stages: at 12 hours, the cure has drawn visible liquid and edges begin to firm. At 24 hours, the surface is firm, the centre still soft — a light cure with sashimi-like centre. At 36 hours, the flesh is firm throughout but supple. At 48 hours, the texture is dense and sliceable, with 15-20% moisture loss. Beyond 48 hours, the fish becomes progressively drier and saltier. Sensory tests: the surface should feel firm and slightly tacky, not slimy. Smell should be clean — ocean, dill, salt, with no ammonia. Colour should be deeper and more saturated than raw. When sliced thin on the bias, flesh should be translucent at the edges and evenly coloured.

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