Sarah Ahmed, The Wine Detective, rates the Steenberg Reserve and Buitenverwachting Sauvignon Blanc in her Wines of South Africa Taste the Earth highlights.

Buitenverwachting Sauvignon Blanc 2009 (Constantia) – A citrus-driven nose and flinty and steely with grapefruit and whetstone, even a hint of sweet talc. Long. Very good.
The vineyard is based on decomposed granite on a south facing slope at 200m.

Winemaker Brad Paton says “we have identified this site as something special, as the Sauvignon Blanc fruit retains its flavours and develops over a much longer period. The complex structure is really the magic in this wine”

Steenberg Sauvignon Blanc Reserve 2009 (Constantia) – though the nose is quite classic – fresh and grassy with pear – it’s more tropical/exotic in the mouth with sweet citrus, ripe mandarin and an attractive fennel quality. Good weight and length.
 

Winemaker JD Pretorus says “Steenberg Sauvignon Blanc Reserve is the ultimate expression of Steenberg terrior, it is a selected portion of the best block of Sauvignon Blanc on Steenberg.”

Read the full article at http://www.thewinedetective.co.uk/regional-reports/south-africa/wines-of-south-africa-taste-the-earth-highlights-sauvignon-blanc-and-sauvignonsemillon-blends/