I'm not quite sure why but three people this morning have asked about the difference between blind and double-blind tastings.
In most cases at blind tastings the taster or tasters are told what wines are to be served. The wines are then offered in bagged bottles or by being poured for them into numbered glasses.
In double-blind tastings, tasters do not know any more than the general category of wines to be tasted, but not the specific wines. The information given sometimes includes the variety, the region and the vintage year.
Anticipating a question - my own tastings held in my tasting room are a combination of blind and double-blind starting off by my giving my assistant a list of wines to be tasted and she matching those with other wines in a similar category but not letting me have any information at all about what wines have been added.
Under any system, notes should be written and scores assigned before the bottles are unveiled and neither the tasting note nor the score should be "adjusted" after knowing what wine was tasted. The only exception to that rule, knowing the track record and having experience with specific wineries might allow for adjustment of the drinking window.
Best
Rogov
