Path
Terroir
Verified pathEvery step checked against primary sources, last September 2026
Climate, latitude, altitude, slope, water and soil, each read alongside a region that shows it.
New to wine 164 min 20 steps About Terroir
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Start with the idea itself: terroir as the natural environment where the grapes have been grown, including its climate, soil and topography.
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Before climate types, the wine belt itself: most of the world's vineyards sit between 30 and 50 degrees north and 30 and 50 degrees south of the equator.
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Climate Types in Wine: Continental, Maritime, Mediterranean, and Beyond
Climate comes first: the three foundational types, continental, maritime and Mediterranean, and the 30th to 50th parallel band where vines are generally suited.
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Cool Climate Viticulture: Character and Grape Suitability
Then the cool end of that band, where growing-season averages of roughly 13 to 15°C slow ripening and keep natural acidity.
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Aspect & Sun Angle at Different Latitudes
Latitude and aspect together: how the sun's angle and a slope's direction set ripeness, and why north-facing slopes are the warm ones in the Southern Hemisphere.
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Climb higher: temperature falls roughly 0.6°C per 100 meters, which allows cool-climate ripening at latitudes otherwise too warm for fine wine.
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See altitude at work in Mendoza, where vineyards run from 640 meters in eastern Maipú to over 1,700 meters in the Uco Valley.
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Slope Gradient & Drainage Efficiency
From height to steepness: how slope gradient governs drainage, vine stress and disease pressure.
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The Mosel shows slope and soil together: the world's largest steep-slope region, where dark Devonian slate absorbs warmth by day and radiates it at night.
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Next, the day-night swing: cool nights slow the loss of malic acid, so warm regions keep freshness as grapes ripen.
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In Napa Valley, summer fog shrouds the valley until mid-morning, and Calistoga sees dramatic day-to-night temperature swings.
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Maritime / Oceanic Climate (Bordeaux, Champagne, Oregon)
Now water: ocean air moderates temperature extremes in maritime climates such as Bordeaux, Champagne and the Willamette Valley.
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Sonoma Coast is a maritime case in point, defined by its cool maritime climate and persistent fog.
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Pacific Marine Fog and California Cool-Climate
Fog is the mechanism behind that: the cold California Current generates fog that drifts inland through low gaps and passes in the coastal hills.
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Continental Climate in Wine: Burgundy and Germany
Set against it the continental pattern, from the hot summers and dry fall weather of the Côte de Nuits to the warm, dry summers and cold winters of Franken.
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Dry Summer / Wet Winter Cycle & Disease Pressure
Rainfall timing matters too: winter-wet, summer-dry regions concentrate flavor through summer water stress while wet dormant seasons sustain mildew.
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Rainfall and Precipitation Timing
Totals matter alongside timing: Mendoza gets around 200mm of rain a year against 1,600 to 1,800mm in Rías Baixas, and growers answer the gap with irrigation or drainage.
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Soil Types in Wine: A Visual Guide
Then the ground itself: eight soil types and how drainage, water retention and heat storage shape the wine.
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Go deeper: Soils, 16 steps, 124 min
Take the soils side path for limestone, volcanic, schist, clay, gravel, sand, granite, marl and alluvial soils and their benchmark regions.
Start Soils Done -
Close with the factor that changes every year: how one season's weather shifts quality, style and aging potential from vintage to vintage.
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