Question: What is Pyrazine?
Answer: Usually it is the technical word to describe those aromatic compounds showing green pepper vegetal notes you find in certain wines. New Zealand sauvignon blanc usually has lots of Pyrazine and you can also find it even in different red varieties such as unripe cabernet sauvignon often grown in cooler regions. More recently it also has been used to describe a ladybug taint in a wine that results from infestations of those insects during the grape crushing procedure of wine making. Useful word.
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