檢查食品保質(zhì)期的有效方法

檢查食品保質(zhì)期的有效方法

Food spoilage is mainly the result of a mutual interaction between two factors, the nature of the food itself and the external environment.

食品變質(zhì)主要是食品本身的性質(zhì)和外部環(huán)境這兩個因素相互作用的結(jié)果。

If you keep the following rules in mind, you can tell a food is fresh or old just by looking at the food .

如果你能記住下面這些規(guī)則，你就能通過看食物來判斷食物是新鮮的還是舊的。

1. Leftovers in the refrigerator

冰箱里的剩菜

Many people have a habit of storing leftovers in the refrigerator for the day together and eating them the next day. However, this is not the best way to preserve food because not all foods are resistant to the growth of bacteria and mold when stored in the refrigerator.

很多人都有把剩菜放在冰箱里，第二天一起吃的習慣。然而，這并不是保存食物的最好方法，因為并不是所有的食物都能抵抗細菌和霉菌的生長。

If the refrigerator does not have enough cold temperature, it will not be able to store food for more than 1 day, or the refrigerator contains too much food, resulting in lower quality.

如果冰箱沒有足夠的低溫，食物就不能儲存超過1天，或者冰箱里食物太多，導致質(zhì)量下降。

When you notice that food has an unusual smell, stale vegetables, and raw meat thawed is viscous and has an unusual odor, it is a sign that the food has been rancid and should not be used.

當你注意到食物有一種不尋常的氣味，陳腐的蔬菜，和生肉解凍后粘稠并有一種不尋常的氣味，這是一個信號，表明食物已經(jīng)變質(zhì)了，不應(yīng)該使用。

2. Eggs

雞蛋

Eggs can be stored in the refrigerator for 3 weeks. But if you are wondering whether the home egg is old or new, get a full glass of water or a bowl of water and put the egg in there.

雞蛋可以在冰箱中保存3周。但是如果你想知道家里的雞蛋是新的還是舊的，那就拿一杯水或者一碗水，把雞蛋放進去。

If the egg sinks to the bottom, it is still fine to use but if the egg floats, the eggs are spoiled and out of date.

如果雞蛋沉到底部，仍然可以使用，但如果雞蛋浮起來，雞蛋就變質(zhì)了，過期了。

3. Yogurt

酸奶

When unopened, yogurt can be stored for 1 week in the refrigerator and 5 days if opened, and you should pay attention to the expiry date shown on the packaging.

酸奶未開封時可在冰箱中保存1周，開封后可保存5天，請注意包裝上的過期日期。

If you open the yogurt and notice signs of mold or color changes, immediately throw it in the trash.

如果你打開酸奶發(fā)現(xiàn)有霉菌或顏色變化的跡象，立即把它扔進垃圾桶。

4. Red meat

紅肉

The shelf life for red meat is about 1-3 days if it's raw and 7-10 days if it's cooked. For meat purchased in the supermarket, throw it out immediately if the expired meat is printed on the package to avoid food poisoning.

紅肉的保質(zhì)期是1-3天，如果是生的，是7-10天。在超市購買的肉類，如包裝上印有過期肉類字樣，應(yīng)立即扔掉，以免食物中毒。

Red meats show signs of spoilage often have a distinct, pungent odor and a bad smell.

有腐敗跡象的紅肉通常有一種明顯的，刺鼻的和不好的氣味。

5. Poultry meat

禽肉

Fresh poultry, light pink in color, and cooked poultry should be white. When the color of the meat turns gray and has a strong odor it is likely that the food is spoiled and cannot be used anymore.

新鮮家禽肉呈淡粉紅色，煮熟的家禽肉應(yīng)是白色的。當肉的顏色變成灰色，并有強烈的氣味，這可能是食物變質(zhì)，不能再使用。

6. Watermelon

西瓜

On the outside, watermelons may differ depending on the variety, but on the inside, melons should always be pink or magenta.

西瓜的外觀可能因品種不同而有所不同，但在內(nèi)部，西瓜應(yīng)該始終是粉紅色或洋紅色。

If the melon is removed and the red part is darker than usual, and the sweetness is not natural, the melon is likely to be booted. The melon has a pale white streak and slightly viscous, then the melon will rot. New, delicious melons will always be fragrant, fresh and very sweet, with hard melon rind and without pitting holes.

如果去掉瓜瓤，紅色部分比平時深，甜度不自然，瓜瓤就有可能壞掉了。甜瓜呈淡白色條紋，略顯粘稠，就會腐爛。新鮮可口的瓜總是香氣撲鼻，鮮甜可口，瓜皮堅硬，沒有麻子洞。

7. Fresh milk

新鮮牛奶

For unopened box of milk, you can still use it within 1 week from the expiration date indicated on the carton. This applies only to 1%, 2% and skim milk.

對于未開封的牛奶盒，從保質(zhì)期開始算起，一周內(nèi)仍可使用。這只適用于1%，2%和脫脂牛奶。

With fresh milk, depending on the type of milk, you must use it in 24 hours or 2-3 days, store them in the refrigerator at a temperature of about 4.4 degrees Celsius. Don't keep boxes of milk on the refrigerator door because it has an unstable temperature, not suitable for milk storage.

對于鮮奶，根據(jù)牛奶的類型，你必須在24小時或2-3天內(nèi)使用它，將它們儲存在溫度約4.4攝氏度的冰箱中。不要把盒裝牛奶放在冰箱門上，因為冰箱門溫度不穩(wěn)定，不適合存放牛奶。

The rotten milk will be slightly viscous and has a sour taste that is no longer as fragrant as fresh milk.

腐壞的牛奶會有輕微的粘稠和酸味，不再像新鮮牛奶那樣芳香。