Here are three elements that lend to our enjoyment of wine.
Acidity – It’s a vital component helping the wine to taste fresh as well as preserving it. White wines with higher acidity usually age better than those with low.
Sweetness – Sometimes there is residual sugar in wine, but there is also sweetness from the fruit. There may be no residual sugar but it may taste sweet from the fruit. Also, alcohol can add a certain sweetness to wine.
Bitterness and Astringency – Tannins are typically sensed by touch but tannins can also be sensed as bitter by the bitter receptors in the tongue.
When tannins, sweetness and acids are balanced in a harmonious way, according to your palate, then you have a lovely wine!