關於食品安全的10個知識瞭解一下很有必要（上）

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我們都知道食品安全非常重要，但是關於食品安全你瞭解得夠多嗎？一起來增長見識。

1. Chocolate with white or grayish film is fine to eat

結了白色或灰色膜的巧克力也能吃

While white or grayish film formed on the surface of chocolate might not look very appetizing, turns out it's perfectly fine to eat. The process occurs when cocoa butter fats separate from the cocoa.

巧克力表面結了一層白色或灰色膜可能看上去讓人沒有食慾，但實際上完全可以吃。這是恆星脂和恆星分離的結果。

2. Double-dipping can spread bacteria and viruses

二次蘸醬會傳播細菌和病毒

Sadly, double-dipping is not the greatest idea, since it can spread bacteria and viruses, even when a person isn't visibly sick or unwell. Therefore, it's always best to put dip on your own plate and enjoy it without spreading germs to other people.

可悲的是，二次蘸醬不是個好主意，因爲它會傳播細菌和病毒，即使蘸醬的人沒有生病或不舒服的跡象。因此，最好在自己的盤子裏蘸醬享用，不要把細菌傳給其他人。

3. The 5-second rule is a myth

“5秒規律”不是真的

To test out people's favorite "rule," Dr. Ronald Carter from Queen Mary, University of London did an experiment. He dropped pizza, apple, and toast onto different surfaces and it revealed that they were all covered in germs. As it turned out, the "5-second rule" isn't true—bacteria can attach to food as soon as it touches the floor.

爲了測試人們最喜歡的這條“規律”，倫敦大學瑪麗皇后學院的羅納爾德·卡特博士做了一個實驗。他將披薩、蘋果和吐司掉落到不同的表面，結果發現它們全都被細菌覆蓋。事實證明，“5秒規律”不是真的，食物一碰到地面，細菌就會附着在食物上。

4. Refrigerated leftovers must be tossed out in 3 to 4 days

冰箱裏的剩菜必須在三四天內丟棄

We all know that some types of bacteria can cause illness. However, as it appears, the types of bacteria that do don't affect the smell, taste, or appearance of food. This is why it's crucial to either freeze or throw out refrigerated leftovers within 3 to 4 days.

我們都知道，某些類型的細菌會致病。但是，致病的細菌似乎並不會影響食物的氣味、口感和外觀。這就是爲什麼冰箱內的剩菜一定要冷凍或在三四天後丟掉。

5. Titanium dioxide that's found in icing has been linked to inflammatory bowel diseases

糖霜裏含的二氧化鈦會導致炎症性腸道疾病

Titanium dioxide—an additive that's used to make white appear even whiter—can be found in a variety of foods, like coffee creamer, icing, powdered sugar, and ranch dressing. However, for the exact same reason, it is used in making sunscreens, laundry detergents, and paint. FDA considers the additive safe; however, there was research conducted that linked it to inflammatory bowel diseases. In addition to this, as of 2020, France has banned titanium dioxide in food.

讓白色物體顯得更白的二氧化鈦添加劑在多種食物中都能找到，比如咖啡奶精、糖霜、糖粉和牧場沙拉醬。出於同樣的原因，這種添加劑也用於製作防曬霜、洗衣粉和顏料。美國食品和藥物管理局認爲這種添加劑是安全的，但是研究發現二氧化鈦可能會導致炎症性腸道疾病。2020年法國已經禁止在食物中添加二氧化鈦。