● The Codex // 29 varieties catalogued
The Grape Codex. Every grape that matters — origin, parentage, why winemakers use it, how it's vinified, where it grows, and who does it best. Tap a card for the full dossier.
white
Thick-skinned, salt-tolerant, naturally high-acid — perfect Atlantic seafood wine.
white
One of the few whites that retains screaming acidity even at 14%+ alcohol; ungrafted bush vines (kouloura) tolerate brutal Aegean wind.
red
Cabernet Franc Spanish Basque Country / Southwest France
Aromatic lift, herbal complexity, earlier ripening than Cab Sauv — adds perfume and freshness.
red
Cabernet Sauvignon Bordeaux
Thick skins, small berries → deep color, high tannin, structural backbone for cellaring. Reliably ripens cassis, cedar, graphite signatures across climates.
Late-ripening, deeply pigmented, with a savory pyrazine green-pepper signature when underripe — and plum/cocoa when fully ripe.
Neutral 'winemaker's grape' — a blank canvas that takes oak, lees, and malolactic gracefully across every climate.
High natural acidity at almost any ripeness — the only grape that produces world-class dry, off-dry, sweet, and sparkling from the same parcel.
white
High acid + thin skins susceptible to noble rot — the foundation of Tokaji Aszú, sweet wine made for centuries before Sauternes.
red
Gamay Burgundy (banned by Philippe le Hardi in 1395 from the Côte d'Or)
Light, juicy, high-acid; thrives via semi-carbonic maceration that emphasizes its candied red-fruit signature.
white
Gewürztraminer Aromatic mutation of Savagnin Rose (Tramin
Pink-skinned grape with explosive aromatics — lychee and rose petal in a single sniff; impossible to confuse.
red
High alcohol, low tannin, red-fruit perfume; oxidative-tolerant — also makes the world's great fortifieds.
white
Grüner Veltliner Lower Austria
Signature white pepper (rotundone) and lentil/legume note; brisk acidity makes it food-versatile.
red
Inky color, plush mid-palate, soft tannin — found its true home in Mendoza's high-altitude sun.
red
Earlier-ripening, plumper and softer than Cabernet — supplies flesh, mid-palate generosity, and lower tannin.
red
The 'M' in GSM — provides structure, dark fruit, and gamey depth that lifts Grenache's softness.
white
Muscat (Muscat Blanc à Petits Grains) Greece / Eastern Mediterranean — among the oldest cultivated vinifera
One of the only varieties that smells exactly like the grapes themselves — pure musk and orange blossom.
red
Thin-skinned but ferociously tannic and acidic — produces wines of paradoxical pale color and hugely powerful structure.
white
Pinot Gris / Pinot Grigio Burgundy mutation of Pinot Noir
Same skin-mutation flexibility as Pinot family; ranges from neutral & crisp (Italy) to rich & spicy (Alsace).
Thin-skinned, terroir-transparent, capable of unmatched aromatic precision. The ultimate site-expressive grape.
Razor acidity + transparency to terroir; ages decades developing petrol (TDN) without oak — the great unmasker of soil.
red
Sangiovese Central Italy (Tuscany)
High acidity + savory red-fruit core makes it Italy's great food wine. Many clones (BBS-11, Janus) tune body and color.
white
Sauvignon Blanc Loire Valley / Bordeaux
Methoxypyrazines and thiols deliver a piercing, herbaceous, citrus signature that no other grape matches.
Thin skins make it uniquely susceptible to noble rot (Botrytis cinerea); waxy texture and lanolin notes mature spectacularly.
Carries pepper, smoke and meaty savouriness no other grape replicates; ages on tar and leather complexity.
red
Tempranillo Northern Spain (Iberian native)
Versatile across climates; takes American oak's vanilla beautifully — defines the Rioja style.
red
Tiny berries, dense pigment, floral lift — the noblest of the Port grapes and now leading Douro dry reds.
white
Viognier Northern Rhône (Condrieu)
Heady aromatic intensity — apricot, honeysuckle, ginger — coupled with full body and low acidity.
white
Provides Cava with body, structure and aging potential; high in resveratrol — naturally oxidation-resistant.
red
Zinfandel Croatian Dalmatian coast (DNA proven by Meredith/Maletić 2001)
Uneven ripening in clusters → simultaneous green, ripe, and raisined berries; high sugar drives muscular, brambly reds.
Sourced from Wine Grapes (Robinson, Harding, Vouillamoz 2012), OIV, and the Oxford Companion to Wine. • Ask the Oracle