The normal color of loose wine should be a colorless and transparent liquid without suspended or precipitated substances. Pour loose wine into the glass, and there should be no ring-shaped insoluble substances on the wall of the glass. Invert the bottle and observe the body of the wine in light, without any suspended solids, turbidity, or sediment. In winter, if there is sediment in loose wine, it can be heated to 30-40 ℃ in a water bath. If the sediment disappears, it is normal.
香气鉴别 在对散酒的香气进行感官鉴别时，好使用大肚小口的玻璃杯，将散酒注入杯中稍加摇晃，即刻用鼻子在杯口附近仔细嗅闻其香气。或倒几滴酒在手掌上，稍搓几下，再嗅手掌，即可鉴别香气的浓淡程度与香型是否正常。散酒的香气可分为： 溢香——酒的芳香或芳香成分溢散在杯口附近的空气中，用嗅觉即可直接辨别香气的浓度及特点。 喷香——酒液饮入口中，香气充满口腔。 留香——酒已咽下，而口中仍持续留有酒香气。 一般的散酒都应具有一定的溢香，而很少有喷香或留香。名酒中的五粮液，就是以喷香著称的：而茅台酒则是以留香而闻名。散酒不应该有异味，诸如焦糊味、腐臭味、泥土味、糖味、酒糟味等不良气味均不应存在。
When conducting sensory identification of the aroma of loose wine, it is advisable to use a glass with a large stomach and small mouth. Pour the loose wine into the glass and shake it slightly. Immediately, use your nose to carefully smell its aroma near the mouth of the glass. Or pour a few drops of wine on the palm of your hand, rub it a few times, and then smell the palm to distinguish the intensity and shape of the aroma. The aroma of loose wine can be divided into: overflow - the aroma or aromatic components of the wine spill into the air near the mouth of the cup, and the concentration and characteristics of the aroma can be directly distinguished by smell. Aroma - When drinking alcohol, the aroma fills the mouth. Fragrance retention - The wine has been swallowed, but the aroma of the wine still lingers in the mouth. Generally, loose wine should have a certain amount of fragrance, and there is rarely any fragrance or lingering fragrance. Wuliangye, a famous liquor, is known for its fragrant aroma, while Maotai liquor is famous for its lingering fragrance. The loose wine should not have peculiar smell, such as burnt, rotten, earthy, sugar, distiller's grains and other bad smells.
Taste identification: The taste of loose wine should be distinct from strong, light, soft, spicy, pure, and evil flavors. After swallowing the wine, there should be sweet, bitter, and spicy flavors. The taste evaluation of loose wine is based on its richness, no odor, and no strong irritancy as the top grade. When identifying the taste of loose wine through sensory evaluation, the loose wine in the mouth should be tasted carefully on the tongue and throat to identify the richness of the wine taste and the quality of the taste.
酒度鉴别 散酒的酒度是以酒精含量的百分比来计算的。各种散酒在出厂的商标签上都标有酒度数，如60°，即是表明该种酒中含酒精量 60％。 散酒总的特点是酒液清澈透明，质地纯净，芳香浓郁，回味悠长，余香不尽。 影响散酒品质的因素：
The alcohol content of loose liquor is calculated based on the percentage of alcohol content. All kinds of loose liquor are labeled with alcohol content on the factory trademark, such as 60 ° C, which indicates that the alcohol content of the liquor is 60%. The overall characteristics of loose wine are clear and transparent liquid, pure texture, rich aroma, long aftertaste, and endless aftertaste. Factors affecting the quality of loose liquor:
(1) The discoloration of loose wine: When acidic loose wine is placed in an unpasteurized iron barrel, the iron barrel walls are easily oxidized and reduced to compounds of high or low iron ions, resulting in the wine turning yellow brown. The use of aluminum barrels containing zinc can also cause oxidation with the acids in the liquor, resulting in the formation of zinc oxide, making the liquor milky white.
(2) Deterioration of loose liquor: the use of cast iron (pig iron) containers to contain liquor will make Baijiu produce sulfur flavor. The wine coated with decaying blood will produce a bloody odor when placed in a wine jar. Some people use newly made wine boxes to pack wine during transportation, which can also cause odor pollution and give the wine a bitter taste of wood. Regardless of whether it is loose wine that changes color or flavor, the cause should be identified. Wine that has been restored to its original quality after special treatment can continue to be consumed, otherwise it is not suitable for drinking or can only be used for other purposes.
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