How to tell if vinegar is good or bad? How to buy safe vinegar ?

Whether it's beauty or food, don't buy what is prepared, buy what is brewed. But for beauty, it is best to use colorless rice vinegar; The quality of brewed vinegar can be shaken to see its foam, and the rich and delicate foam is good quality vinegar.

1. On the identification of inferior vinegar.

One of the low-quality vinegar tables is to add low-quality pigments to prepare the color, because the inferior pigments are corrosive, they will leave stains on the packaging container.

The second performance of inferior vinegar is to add flavor to flavor, there is no flavor product that can better reflect the natural vinegar fragrance, and the flavor result often forms a peculiar smell, just smell it.

The third performance of inferior vinegar is to replace edible acetic acid with industrial acetic acid, because the packaging requirements of industrial acetic acid are not strict, it contains various impurities, which often makes the product have a metallic smell, plastic smell and other peculiar smells, or form pungent nose, inverted teeth and other nasty results.

The fourth manifestation of inferior vinegar is that the microorganisms are seriously exceeded, which is manifested as a putrid smell, a sour taste, mildew and turbidity.

The fifth manifestation of inferior vinegar is that the concentration is not enough, which is manifested as a light taste, not resistant to storage, and easy to mold.

Second, the characteristics of high-quality vinegar.

Color has the color of this product, such as heavy vinegar is brown-red, or dark brown, white vinegar is colorless, transparent, shiny.

Smell and taste have aroma, such as heavy vinegar for heavy aroma and vinegar aroma coexist, bran vinegar for mellow aroma and vinegar aroma coexist; The sour taste is soft, sour, sweet, fresh and salty, and the aftertaste is long.

The concentration is relatively appropriate, and there are no suspended solids and precipitates.

1. The bottle has the word brewing. If the brother is buried in brewed vinegar, the word brewing is generally marked with a more conspicuous font on the bottle body, or pure brewing, brewed vinegar and other similar words.

2. The implementation standard of high-quality vinegar is GB18187, which is the national food standard number for brewing vinegar.

3. The total acidity is high. Generally speaking, the higher the acetic acid content, the better, for example, vinegar with a total acidity of 6% is better than 3%. A high total acidity not only means a more mellow acidity, but also a better resistance to bacterial contamination and ease of preservation.

4. The texture is thick and the color is strong. For aged vinegar products without thickeners and caramel pigments, folk experience such as "the heavier the color, the better" is still applicable. Because of the precipitation of nutrients, if it is used for a long time, it is normal to have a little sediment.

Precautions for vinegar consumption.

Dosage appropriately: Vinegar has many functions, and some people like to consume vinegar in their daily diet, but consuming too much vinegar is not beneficial. Generally speaking, adults should consume 20-40ml of vinegar per day under normal circumstances, not more than 100ml, and rinse their mouths at any time after eating vinegar to avoid damage to teeth.

Some people are not suitable for eating vinegar: vinegar has many health care functions, but for some users, it is not suitable for consumption, and people with stomach disease are not suitable for drinking vinegar directly. It is not recommended to consume vinegar after taking certain medications, as sulfonamide tends to form crystals in an acidic environment and can damage the kidneys.

When taking alkaline drugs such as sodium bicarbonate, magnesium oxide and complex aluminum hydroxide, vinegar will counteract the effects of the drugs.

The above content refers to Encyclopedia - Vinegar.

People's Daily Online-Health News: 7 standards for a bottle of good vinegar.

Take a look at the acetic acid content indicated on the label: generally speaking, the content of prepared vinegar shall not be less than, and the content of brewed vinegar shall not be less than. This does not apply to non-flavored vinegar (e.g. drinking vinegar, etc.).

Second, look at the production method indicated on the label: whether it is brewed vinegar or prepared vinegar, and purchased according to personal preferences.

3. See the production date clearly: Don't buy expired products.

Fourth, see the manufacturer clearly: do not be misled by similar label patterns.

Tip: Not all products from the same place have characteristics that represent the products of that place. When buying vinegar, give priority to products with complete labels.

Look at the color and posture.

Look at the color: with amber or reddish-brown, shiny is the best.

Look at the posture: the body is clear, the concentration is appropriate, the quality of the products without suspended solids and precipitation is better, and the quality is inferior on the contrary.

Smell and taste.

Smell: A good vinegar should have the unique aroma and ester fragrance of vinegar, and there should be no bad smell.

Taste: soft sourness, long aftertaste, mellow aroma, no astringency, no peculiar smell.

**: Pick up two bottles of vinegar and shake them back and forth** and then observe;

Real vinegar: The foam after shaking the real vinegar will not disappear quickly.

Fake vinegar: The foam after shaking the fake vinegar will disappear after a while.

Look for "QS".

Look for the "QS" mark when buying food to identify the quality of vinegar.