Several years ago I went through a Pinot frenzy stage. I recently looked through my stored wines and decided that I needed to clean out the last of the 2010 Pinots (Aus & NZ) as I suspected they may be losing their lustre.
I was right. While none of the wines were over the hill (all had been kept in wine cabinets since purchase), distinctiveness was gone - especially among the Australians. They all tasted much the same - not exactly what I bought them for.
What universally came through was acidity - so they had held together but had lost freshness and certainly none had any 'wow factor' remaining.
Individual sub-labels may be difficult to pick up, but all were different (eg. the three Felton Roads are all different; Main Ridge is a Half Acre and an Acre).
My broad bottom-line conclusion based on this lot (and based on my memory of drinking their siblings earlier): drink Aus Pinots within about 4 years and all but the most exceptional NZ Pinots within about 5 years to best appreciate them.
Essentially, they are modern wines that do not need age to shine.
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Next: some 2011's...