Liquid objects will have sediment after being left for a long time. For example, milk tea will become clear after being left for a long time, and milk will also have sediment after being left for a long time. This situation is often seen in condiments. For example, if vinegar is left in the bottle for a long time, cloudy precipitation will appear. Don't worry, it is still edible even so. If you are worried about whether it is harmful, we can consume it as soon as possible after opening the bottle. Below are some tips on choosing vinegar, let’s take a look. Brewed vinegar that has been left for a long time may have cloudy precipitation, but it will not affect consumption. The color of brewed vinegar varies depending on the variety, such as dark brown, brownish yellow, amber, etc. It is shiny, clear in appearance, and free of suspended matter and precipitation. Prepared vinegar is purely an aqueous solution of acetic acid. It looks very clear and transparent, but dull. It is not as easy to mold and deteriorate as brewed vinegar, and it will not become turbid or precipitate after being left for a long time. Tips for choosing vinegar: Read the label. According to national standards, the total acid content should be indicated on the vinegar product label. The total acid content is a characteristic indicator of vinegar products. The higher the content, the stronger the sour taste of the vinegar. Generally speaking, the total acid content of vinegar should be ≥3.5g/100ml. Check the production date carefully and do not buy expired products. Be sure to identify the manufacturer and don't be misled by similar label patterns. Not all products from the same place have the characteristics that represent the products of that place. Look at the color and shape. Brewed vinegar is amber or reddish brown in color, and the shiny ones are of good quality. Products with clear body, appropriate concentration, and no suspended matter or precipitation are of better quality. Smell the aroma and taste the flavor. Good vinegar should have the unique aroma and ester aroma of vinegar, and should not have any unpleasant odor. The sour taste is mild, the aftertaste is long, it is mellow, not astringent, and has no peculiar smell. |
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