Nowadays everyone seems to peruse the label on food products just to see what strange things are going to end up inside us. We've become a rather sceptical lot. Wine label gazing is no different.

Wine percentages are the important point here, and everythings seems to be based on 85%. For example, a wine can't be called Cabernet Sauvignon - or whatever variety - unless there is 85% of Cabernet grapes in it.

It may not be called Cabernet-Merlot or Semillon-Sauvignon Blanc unless the blend is made of at least 85% of these grapes. But, say, less than 15% of Cabernet Franc is added to Cabernet-Merlot, then the Cabernet Franc does not have to be declared on the label.

Where a vintage year is concerned, a least 85% of grapes in the wine must be picked in that year in order to have the year marked on the bottle.

And a wine can only be labelled as a Margaret River wine if 85% of the grapes were sourced from within the Margaret River Wine Region.