When tasting wine, there are few main components to look for: acidity, fruitiness, dryness, sweetness, tannin, and body. 

Acidity is the overall level of tartness in a wine. It can range from mild and refreshing to sharp and harsh. Acidity should always be balanced with other components within the wine such as sweetness or tannins.

Fruitiness refers to the type of fruit flavors found in a wine. This can range from vibrant red cherries and raspberries to tropical papaya and mangoes. The intensity of the fruit profile will often vary depending on how ripe and sweet the grapes were when they were harvested as well as how they were processed by the winemaker.

Dryness refers to how much sugar is left in a wine after fermentation is complete. Wines that are considered “dry” have little to no sweetness whereas wines that are “off-dry” or “medium” still contain some residual sugar but not enough to give it a noticeable sweet taste. 

Sweetness is measured by the amount of sugar present in a given bottle of wine. Sweetness levels can also vary greatly between types of wines – sparkling wines like Moscato almost always have added sugars. Sweetness can also play an important role in balancing out acidity, making it an important component to look for when tasting different styles of wines! 

Tannin gives a desired astringency or bitterness that helps balance out acids, sugars, and other components found in wine.

In addition to these key elements, body also plays an important role when describing the taste of a particular bottle of wine. This refers to how heavy or light a wine feels on your palette when you take a sip. The body can range from slight and delicate through both richly textured light-bodied options right up to full-bodied offerings – all depending on what variety of grape was used as well as how long it was aged before being bottled up!

To really begin understanding how these components work together you need to start tasting different styles of wines - paying attention not only to how they look (color, clarity), smell (primary aromas & bouquet) but also most importantly what other flavors come through when you take your first sip (acidity, fruitiness, dryness, sweetness). Doing this will help you develop an appreciation for each individual part as well as the combination of them all! 

So when evaluating any type of wine, make sure you pay attention to these four components: acidity, fruitiness, dryness, and sweetness – as understanding how each element affects the overall flavor profile can help you develop an appreciation for all types of wines!