Wine and Dirt: How Soil Composition Affects Grapes and Wines

What is the relationship between wine and dirt? Marc discusses how the soil composition of a vineyard/region affects grapes and the wines they make.
0:00 What is Terroir? Can you taste soil?
0:39 What is the most important quality of soil?
1:14 Color and composition matter
1:28 Nutrient content is important
1:52 The takeaway on wine and soil
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[@addisonchaos3566]

Thank you for preaching the science of wine!

[@wine-living]

Happy #winewednesday, friends! This week we're gettin' dirty! Let's explore how dirt and soil affects grapevines and wine. Leave your thoughts and questions here. Cheers! - Marc

[@danieldavis7406]

I've heard several growers imply (or state directly) that external particulates can adhere to the grape surface, with some staying on the skin despite the washing process. That would explain how Australian wines could taste like eucalyptus and mountain wines of pine. That could also explain a vague residual "dirt" effect. And if that weren't true, we wouldn't make such a big deal out of organic farming, since the pesticides would wash right off...

[@danmuchnok]

I always wondered about this topic. So, is the "minerality" of some old world wines a product of the winemaker's skill rather than the soil?

[@wine-living]

The minerality is supposedly tied to the acidity of a grape. So the more acidity in the grape/wine, the stronger the mineral flavor.