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spoiled wine

See below wine faults,

bunch rot By this one understands unwanted and unacceptable mistakes or deficiencies in the wine, which are caused by unpleasant ones odor and or taste or even "only" in appearance (veil, opacities, Crystals, etc.). You will be among others at one wine review and wine address determined, then fall for certain errors or a certain extent such wines from the rating. Sometimes a distinction is made between wine defects (wine defects) and wine diseases. Second are through microorganisms ( bacteria. mushrooms. virus ), which may increase in intensity if appropriate countermeasures are not taken.

Whether a certain smell and taste is perceived positively or already as a mistake is subjective in a few cases. Because there are some borderline cases, where a certain smell or taste for one pleasant and positive, for the other, however, is unpleasant or faulty. Examples are the typical ones petrol tone a Riesling or the earthy Smell and as horse sweat designated tone of a red wine. In addition, there are objectively ascertainable general defects that deviate from a certain standard. The range goes from barely perceptible to uncomfortable and corrupt and also depends on experience and sensitivity. A good example is the notorious one corked, which is recognized by experienced persons even at the lowest level. With appropriate experience one can recognize or identify wine mistakes quite exactly. You can also learn this, and various manufacturers offer aroma sets for this:

Aromaset wine error

Mostly, however, is the sensory Assessment for exact identification is not sufficient. The causes of wine defects can be found as early as the growth of the grapes, and then throughout the chain from vintage to harvest bottling, but also later during the bottle aging occur. For the most part, it is chemical and microbiological processes that are caused by microorganisms mushrooms or bacteria be triggered or complex reactions of different substances. Causes can also be of a physical nature such as too much contact with oxygen his.

Causing substances

The smell and taste of a wine is composed of many chemical compounds. The total extract is between 17 and 30 g / l for a quality wine. They do that flavorings 0.8 to 1.2 g / l off. Almost all wine defects meanwhile know the causative substances. These usually extremely small amounts are given in milligrams (mg = thousandths), micrograms (μg = millionths) to nanograms (ng...

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