At 5,680 feet the sun hits harder. More UV gets through the thinner atmosphere and grapes respond by growing thicker skins to protect themselves. Thicker skins means more of everything that makes red wine interesting. More color. More tannin. More of the compounds that give wine depth and texture. You can't substitute for altitude.image

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do grapes grow slower at higher elevations like tea or coffee? 🤔
are there less bugs/pests up there too?🤔 random tea fact: in taiwan tea leaves grown at higher elevations are sought after because the leaves are more nutrient dense from growing slower, but there is specialized tea called oriental beauty (東方美人) which despite grown at lower altitudes holds high demand because it undergoes additional natural fermentation with bugs that feed off them leaving compounds that make the tea unusually sweet on top of the fermentation-drying process in oolong tea 🤓
Benking's avatar
Benking 3 days ago
Exactly, altitude isn’t just scenery, it’s a natural UV lab. Thicker skins mean higher anthocyanins, more tannins, and complex phenolics. That’s why mountain-grown reds have depth you can’t replicate at sea level.