Tartaric Crystals Tartaric Crystals, commonly referred to as "Wine Diamonds" are far from a wine fault, they are considered to be an indicator that the whole process the wine has gone through up to that moment was as close to perfect as it could have been. hence the phrase "Wine Diamonds".
Put simply the longer the grapes hang on the vine, the more wine acid (the building block of wine diamonds) will accumulate in the grape. Furthermore, the more time the wine is given to ferment, the less wine diamonds will fall out during fermentation, but the more they will instead build later in the bottle.
In other words, wine diamonds are an indicator that the grapes ripened long and the winemaker fermented the wine slowly and with great care, both important precursors to high quality wines.
Tartaric Crystals can be commonly seen at the bottom of the bottle or attached to the cork.
so the next time you look in a bottle of wine and see Wine Diamonds, smile, quietly pay the bill and enjoy the best that wine has to offer!
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