Ever wonder why you see wine connoisseurs stick their noses into their wine glass when the wine steward brings a new bottle of wine to the table? They are “tasting” the wine with their noses.

Believe it or not, your tongue can only taste four things: sweet, salty, sour, and bitter. All the other nuances of taste actually come through a complicated relationship between taste and smell. It is the nose and the nasal passage at the back of the throat that make what we taste in our mouths flavorful.

Inspecting and smelling the cork and sniffing the wine lets the person who ordered the wine evaluate it before putting into his or her mouth. If the wine has been spoiled, these two steps will usually reveal the problem.

Improper wine storage or contamination with certain bacteria can make a wine taste perfectly terrible. You wouldn’t want to put it in your mouth.

After showing you the bottle and removing the cork, the sommelier, or wine steward, will hand you the cork to inspect and sniff. If the cork appears to have deteriorated or smells bad, you should immediately refuse the wine.

If all appears to be well with the cork, the sommelier will pour a small amount of the wine into your glass.

Keep the base of your glass flat on the table and swirl the wine gently around. This mixes air with the wine and vaporizes the complex aromas. Quickly lift the glass and stick your nose into the glass as far as you can and smell the wine.

Some people say that keeping your mouth open while you sniff the wine will help you perceive the full aroma.

When a wine is badly “flawed,” it will often be immediately apparent in it’s “nose,” which is the term wine lovers use for it’s smell. If the nose of the wine is not inviting, and you aren’t immediately tempted to taste it, don’t hesitate to return the bottle to your wine steward. You should immediately be offered a replacement bottle.

Keep in mind that if there are strong scents around you, they can compete with the wine you are evaluating. If you or the person next to you are wearing strong perfume, this can throw off your nose. If there is pungent food being served nearby, this can also affect what you smell in the wine glass.

Once your nose has had first crack at the wine, and the wine has passed the nose test, then take a sip and swirl the wine around in your mouth. Give the sommelier a nod if you approve, and only then will he proceed to serve your chosen wine to your guests at the table.

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