After mapping and separating the Alkina vineyard in Greenock into tiny patches known as polygons, based on varying geologies, the winemaking team has made tiny amounts from the most distinctive of them in what they deem the results of intense research and extreme commitment. The prices of their Polygon wines reflect this and their rarity. Another all-grenache wine from a small schist and ironstone section, the wine is radically different to its Polygon No. 3 sibling. Here it reveals darker fruits with herbal wildness, some orange peel and flesh also in its initial aromatic greeting. Bigger, and more generous in its layered fruit power, its tannin texture is still superfine with an earth and chalk dust feel. Again, this is a complete statement of grape and ground.