THE TRUTH ABOUT SOIL

Excelsior Estate (58)Ever wonder how one wine gets a tropical fruit flavour while another shows more minerality? The soil the vines are rooted in has a very big role to play and proper soil analysis is very important before a new vineyard is planted.

In Robertson, most of the soil is limestone, a sedimentary rock largely composed different forms of calcium carbonate. Many types of limestone are formed from skeletal fragments of marine organisms. These soils are known to contribute to citrus and mineral flavours in specifically white wine.

On Excelsior we also have some vines planted in shale (skalie). Shale is sedimentary mud that hardened into rock thousands of years ago and is now slowly decomposing into soil. It is usually clay rich. These soils, we find, add tropical flavours of pineapple and white peach to our Chardonnay.

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