This is simple Port mathematics! Let´s do it step by step: Port wine is 80% the best must from the Douro and 20% brandy; a bottle of 0.75L of wine requires roughly 1 kg of grapes, whereas brandy, a distilled drink, is much more demanding: 7 kg per liter!
Well, imagine a bottle of 0,75 lt; it contains something like (80% * 1 + 20% * 7)Kg of grapes: that’s 2.2 Kg! The average weight of a Touriga Nacional grape from Quinta Vale d’Agodinho (25 years old vines at an altitude of 250mt) is 1.95 grs. Thus, we need 410 grapes of Touriga Nacional from Quinta Vale d’Agodinho and more 718 grapes for the production of the brandy. 1.128 is the unimaginable number of grapes together for our pleasure in a bottle of Quevedo.
But when we are talking about Port, quantifying is irrelevant. Just enjoy!
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