Wasabi — flavouring profile

True wasabi is the green, fleeting cousin of horseradish — the same nose-rushing heat, but fresher and more vegetal — and it lives almost entirely on raw fish and soy, so the wine must be bone-dry, unoaked and low in tannin before anything else.

The compounds that matter. Wasabi (Wasabia japonica) releases allyl isothiocyanate like its brassica relatives, but alongside it a family of longer-chain isothiocyanates that give true wasabi a greener, sweeter, more complex lift than blunt horseradish — and a heat that is fiercely volatile and gone within minutes of grating. Two things about its setting matter as much as the heat. Raw fish carries trimethylamine, which turns metallic against oak, so an oaked wine is ruled out from the start. And the soy that travels with it stacks salt and glutamate (umami), which makes any tannin taste metallic and harsh. The heat itself behaves like other pungencies: inflamed by alcohol, dispersed by carbonation, softened by a trace of sweetness, and propped up only by high acid.

What it demands of a wine. Bone-dry or barely off-dry, unoaked, low in tannin, high in acid — the non-negotiable shape for raw fish and soy. A saline or citrus edge mirrors the sea; carbonation or a touch of residual sugar tames the fleeting heat; modest alcohol keeps it from flaring. Tannic reds and oak of any kind are out.

Seek. Bone-dry, saline, unoaked whites lead — they meet sashimi on its own ground and leave the fish clean. A high-acid traditional-method sparkling is the great all-rounder: the bubbles scatter the volatile heat, the acid cuts soy salt and carries the richer pieces. A barely off-dry Riesling handles the soy's salt-sweet axis while keeping its acid bright. A marine, oxidative low-tannin style such as Manzanilla or Fino also works where the plate leans savoury and umami-rich.

Avoid. Any oaked wine — the oak turns metallic against the fish. Tannic reds, which the soy umami makes harsh and metallic. High-alcohol wines, which inflame the volatile heat, and low-acid aromatic whites, which collapse under the pungency.

Three to reach for. Albariño (Rías Baixas); a high-acid traditional-method sparkling (Champagne or English sparkling); off-dry Riesling (Mosel Kabinett).